Which layers change
Layer actions use the selected, unlocked layers in the active composition. With nothing selected, hold Alt while clicking to use every unlocked layer. Alt does not expand an existing selection. Locked layers are skipped and counted.
Fit comp is the exception. It always uses all layers, including locked ones. See fitting a comp for its timing changes.
Actions
| Control | Purpose | Details |
|---|---|---|
| To keys | Fit each layer to its first and last eligible keyframe. | Keyframes and padding |
| In point | Set in points from the playhead. | Playhead and work area |
| Out point | Set out points from the playhead. | Playhead and work area |
| Work area | Set both ends from the work area. | Playhead and work area |
| Markers | Use layer markers, falling back to comp markers. | Marker ranges |
| Extend | Lengthen layers toward the comp end. | Source limits and remapping |
| Fit comp | Set the comp’s duration from its layers. | Comp fitting and timecode |
| Read time | Set text durations from word count. | Reading speed and sequencing |
Modifiers
| Gesture | Result |
|---|---|
| Alt-click a layer action with nothing selected | Target all unlocked layers. |
| Shift-click Extend | Extend toward the comp start instead of the end. |
| Alt-click Extend | Allow Time Remap where needed to reach the comp end. Also follows the targeting rule above. |
| Shift+Alt-click Extend | Allow Time Remap toward the comp start. Also follows the targeting rule above. |
| Shift-click Fit comp | Reverse Fit comp moves content to 0 for this action. |
| Shift-click Read time | Reverse Sequence read-time layers for this action. |
Alt is Option on macOS. Cmd and Ctrl have no additional Snippy action.
Pad and WPM field
| Control or gesture | Result |
|---|---|
| Pad | Edit padding in frames for To keys and Markers. |
| WPM | Edit reading speed for Read time. |
| Click the Pad or WPM label | Switch between those fields. |
| Right-click the field | Switch fields, including in small slots where the label is hidden. |
| Drag the number up or down | Increase or decrease it. Pad uses one-frame steps; WPM uses steps of five. |
| Shift-drag the number | Use steps ten times larger. |
| Double-click the number | Type a value. Enter or leaving the input commits it. Escape cancels the edit. Typed values use the field’s step size. |
| Small up and down arrows | Change the value by one step. These arrows hide in very small cells. |
Values save for later use. Settings lists the defaults and limits.
Preview and feedback
Hovering a button changes the preview and, where space allows, the hint below the buttons. The preview summarizes the outer span of up to 200 selected, unlocked layers. It does not show each layer separately. Without a usable selection, it shows a sample. Alt does not turn that sample into a preview of all unlocked layers.
The playhead actions show a time indicator. Work area shows its range. Fit comp changes the rail to show the proposed comp range. Shift and Alt update relevant hints and previews while held.
Move the pointer back into Snippy or return focus to its panel to refresh after changing the After Effects selection or timing.
Buttons are unavailable while an action is running. A successful change briefly animates the button and scissors. A message reports changed layers, with notes for skipped or unchanged targets. had none counts layers without eligible keys or markers. already fit counts unchanged layers. Already snug means the action made no change.
Button badges show counts or the fitted duration when there is room. In smaller cells they shorten to a count or disappear. Refusal badges can read No comp, No selection, No keys, No markers, No text, Outside, Nothing to trim, No layers, or a locked-layer count. Read the accompanying message for the cause and fix.
Slot layouts
Snippy rearranges the same eight actions and number field into a grid, a column, or a row. A narrow column keeps the actions in their usual order.
The preview bar and hint disappear when the slot is too small. Action labels also hide when there is no room. Hover an icon for its tooltip.
In a short row, icons run left to right in the order listed in the Actions table. Right-click the final field to switch between padding and reading speed.