What file formats does FenSight support?

FenSight supports PNG, JPG/JPEG, BMP, GIF, TIFF, TGA, WEBP, JPEG-XL, AVIF, HEIF/HEIC, DICOM, and most RAW formats (DNG, CR2, CR3, NEF, ARW, RAF, and more). It also supports video files and image sequences.

Does FenSight require an internet connection?

FenSight is built for offline use after activation. License keys validate locally, and the app may periodically check license status for refund or revocation handling. Optional AI features can run locally where supported or use providers you configure.

Is FenSight a subscription or one-time purchase?

FenSight is a one-time purchase with no recurring subscriptions. You buy it once and own it forever. Free updates are included, and you can use it offline indefinitely.

Can I use FenSight with Photoshop or other creative tools?

Yes. FenSight supports external drag-out, meaning you can drag selections directly from the canvas into Photoshop, Illustrator, Figma, or any application that accepts file drops. You can also export to clipboard, file, or FTP/FTPS.

What are the system requirements for FenSight?

FenSight requires Windows 10 64-bit (build 19044+) or Windows 11. The .NET 9.x runtime is bundled. Minimum: 8 GB RAM and DirectX 11 GPU. Recommended: 16 GB RAM with a dedicated GPU for large boards and AI features.

Canvas and boards/07

Selection and navigation

Free

Work quickly on dense boards.

Selection and navigation are Free canvas controls. They cover pointer selection, marquee selection, group/object selection mode, keyboard nudging, panning, zooming, fit-to-view, and the size-based selection rail for quickly working through dense boards.

Screenshot coming soon

FenSight canvas showing the Select and Pan tools, navigation toolbar, selection size slider, and selected board items

Screenshot placeholder. Expected production asset: /docs/screenshots/selection-and-navigation.png.

Selection and navigation access paths

Toolbar

Bottom tool rail -> Select (V)

Activates normal selection. Clicking Select again while already in select mode toggles Object and Group selection mode.

Toolbar

Bottom tool rail -> Pan (Space)

Activates panning as a tool. Holding Space gives the same pan behavior temporarily while another tool is active.

Toolbar

Board navigation toolbar -> Zoom in / Zoom out / Fit to screen

Zooms the viewport or fits search matches, organize-preview selection, selected items, or all items in that priority order.

Toolbar

Selection quick rail -> Selection size / Invert selection

Selects a percentage of board items by area. Invert selection switches between smallest-first and largest-first.

View -> Magnifying Glass (Z)

Toggles the magnifying glass overlay and persists the setting.

Help -> Keyboard Shortcuts

Opens the in-app shortcut reference for navigation, selection, editing, layout, media, tools, and board commands.

Toolbar

Settings -> General -> Zoom speed

Controls how quickly scroll and zoom controls change the canvas scale.

Toolbar

Settings -> Performance -> Selection thickness / Max

Controls base and maximum selection outline thickness on the board surface.

Context menu

Right-click an item

If the item is not already selected, FenSight selects it first, then opens that item's context menu.

Selection gestures

Gesture	User-facing behavior	Technical behavior
ClickFree	Selects the clicked item.	A plain click clears the previous selection unless the clicked item is already part of a multi-selection, which keeps the set intact for group dragging.
Shift + ClickFree	Adds the clicked item to the current selection.	FenSight adds the hit item or its group, depending on the current Object/Group selection mode.
Ctrl + ClickFree	Toggles the clicked item in or out of the current selection.	The hit item or group is added when absent and removed when already selected.
Right-click itemFree	Selects an unselected item before showing its context menu.	Right-click selection mirrors Windows behavior: selected items stay selected; an unselected hit item replaces the selection before its menu opens.
Drag on empty canvasFree	Starts a marquee selection rectangle.	FenSight intersects the marquee with eligible item bounds, throttles selection updates while dragging, and shows a live selected-count badge.
Shift + marqueeFree	Adds items inside the marquee to the previous selection.	The selection before the drag is kept, then marquee hits are unioned into it.
Ctrl + marqueeFree	Removes items inside the marquee from the previous selection.	The selection before the drag is kept, then marquee hits are subtracted from it.
Alt + marqueeFree	Selects individual objects without expanding the result to whole groups.	Alt disables group expansion for the marquee. In Group mode it also ignores labels, shapes, and strokes so the marquee targets file-backed items.
Ctrl + AFree	Selects every board item.	SelectAllItems marks every item selected, then expands to groups when Group mode is active.
EscapeFree	Clears transient canvas state.	Escape clears selection, deactivates the current canvas tool, turns label-add mode off, and removes shape or connector preview state.

Navigation controls

Control	User-facing behavior	Technical behavior
Space + DragFree	Temporarily pans the canvas.	Space sets the pan-active state when focus is not in a text editor, updates the Pan tool visual, and returns to the previous tool when released.
Middle DragFree	Pans without changing toolbar mode.	Middle mouse starts the same pan interaction path used by the Pan tool.
Pan (Space)Free	Keeps the canvas in panning mode.	The bottom-rail Pan toggle causes left-button drags on the board to pan before normal selection or tool handling.
Scroll / Ctrl + ScrollFree	Zooms the canvas in or out.	Ctrl + wheel always zooms. Standard wheel zoom is scaled by the configured Zoom speed.
Smooth wheel / Shift + WheelFree	Pans on devices that send smooth wheel deltas.	Smooth wheel deltas pan vertically. Holding Shift pans horizontally.
PinchFree	Zooms with a touchpad, touch screen, or Wacom gesture.	Pinch gestures feed the same board zoom pipeline as wheel zoom.
F / Fit to screenFree	Fits the current work area into view.	Fit targets search matches first, then organize-preview selection, then selected items, then all items. Labels are excluded from the fit target list.
Zoom in / Zoom outFree	Changes zoom from the toolbar or keyboard.	The toolbar buttons and + / - keyboard handlers adjust the same viewport scale, clamped by app zoom limits.
Magnifying Glass (Z)Free	Toggles an inspection magnifier over the board.	The View menu item, toolbar state, and Z shortcut all update the persisted MagnifyingGlassEnabled setting.

Group, size, and batch selection

Control	User-facing behavior	Technical behavior
Object modeFree	Selects the exact object you click or marquee.	Object mode is the default. The Select tooltip reads Select - Object mode (A to toggle).
Group modeFree	Selects a saved group or cluster as one unit.	A toggles group mode. The Select tooltip reads Select - Group mode (A to toggle). Switching back to Object mode clears the selection to avoid stale group selections.
Ctrl + GFree	Groups the selected items.	FenSight assigns a shared GroupId GUID to the selected items and persists it in the board file.
Ctrl + Shift + GFree	Ungroups the selected items.	FenSight clears GroupId from the selected items.
Selection sizeFree	Selects a percentage of non-label board items by area.	The slider sorts items by Width * Height and selects the rounded percentage of the list. Labels are excluded from this size-based list.
Invert selectionFree	Switches size selection from smallest-first to largest-first.	When checked, the size-selection order becomes descending area before the selected percentage is applied.
Selected-count badgeFree	Shows how many items are currently selected.	The overlay displays N selected near the top-left of the board surface when selection count is greater than zero.

Moving and editing selected items

Command	User-facing behavior	Technical behavior
Drag selectionFree	Moves selected items together.	The move path applies the drag delta to selected, unlocked items and refreshes attached connectors.
Shift while draggingFree	Snaps movement to nearby guides.	Guide snapping uses other item bounds and axis-aligned connectors whose style is Line.
Alt + drag selectionFree	Duplicates the selected items before dragging.	FenSight creates a duplicate selection and then starts the normal move path on the duplicates.
Arrow keys / Shift + ArrowFree	Nudges selected items by 1 pixel or by a larger 10-pixel step.	Locked items are skipped. Shift multiplies the nudge distance by 10.
Delete / BackspaceFree	Deletes selected board items.	Deletion removes board items from the canvas state. Large selections are processed in batches.
Ctrl + DFree	Duplicates the current selection.	The duplicate path preserves board item metadata that applies to duplicated items and offsets the result from the original.
Ctrl + C / Ctrl + VFree	Copies and pastes board objects or imports external clipboard content.	Ctrl + C stores an internal board clipboard. Ctrl + V pastes that clipboard when available, otherwise it imports clipboard files, images, or URLs.
[ / ]Free	Moves selected items backward or forward in the board stacking order.	The shortcuts adjust selected item z order by one step.
Drag outside the boardFree	Starts a Windows drag-out operation for selected files.	Only selected file-backed items with existing source files are included. Labels and other non-file annotations are excluded, and board positions snap back to the drag-start positions before the external drag begins.

Complete shortcut reference

Navigation

Shortcut	Action
`Space + DragMiddle Drag`	Pan the canvas.
`ScrollCtrl + Scroll`	Zoom in or out.
`Pinch`	Zoom with a touchpad, touch screen, or Wacom gesture.
`Alt + Scroll`	Resize cluster label text.
`Ctrl+`	Zoom in from the keyboard.
`Ctrl-`	Zoom out from the keyboard.
`F`	Fit the current selection, or fit all items when nothing is selected.

Selection

Shortcut	Action
`Click`	Select an item.
`Shift + Click`	Add an item to the current selection.
`Ctrl + Click`	Toggle an item in or out of the current selection.
`CtrlA`	Select every item on the board.
`Drag`	Marquee select from empty canvas space.
`A`	Toggle group selection and object selection mode.

Editing

Shortcut	Action
`Delete`	Remove selected items.
`CtrlZ`	Undo the last board edit.
`CtrlY`	Redo the last undone edit.
`Arrow keys`	Nudge selected items.
`Shift + Arrow`	Nudge selected items by a larger step.

Board-level shortcuts do not take over while focus is inside a text field, inline label editor, filename editor, or settings input. Click the canvas before using board shortcuts.

Connected guides

Follow these related pages when the workflow crosses into setup, search, organization, export, security, or another board-level system.

Keyboard shortcutsMove around the board without breaking flow.Labels, shapes, and connectorsAnnotate boards without leaving FenSight.Board filesSave and reopen full visual workspaces.External drag-outDrag board selections into other apps.Tags and filtersAdd meaning that filenames do not carry.Importing media and foldersBring files, folders, and large libraries onto the canvas.

Linked from

Quick start Interface overview Keyboard shortcuts Image sequences Video playback and thumbnails PowerPoint and document imports