Points tab

These buttons move selected points by 1px, or 10px if you hold Shift. If you hold Alt when you click them, the tangents that belong to the points will be 'left behind' instead of moved with the points.
Bear in mind that move, align, distribute and snap functions will behave parallel to the X and Y axes of whichever Space is active - composition, layer or shapes' parent group.
The next eight functions in the points tab all move points into a line, and correspond to typical Adobe align and distribute panels found in Creative Cloud applications.

This button will move all selected points into a line at their horizontal center.

This button will move all selected points into a vertical line at the leftmost point.

This button will move all selected points into a vertical line at the rightmost point.

This button will move all selected points into a line at their vertical center.

This button will move all selected points into a horizontal line at the topmost point.

This button will move all selected points into a horizontal line at the bottommost point.

This will distribute the selected points at even spaces between the leftmost and rightmost points. Requires at least three points to be selected.

This will distribute the selected points at even spaces between the topmost and bottommost points. Requires at least three points to be selected.

The mirror buttons require an open path with either the first or last point selected. They will then mirror the shape, around that point, and join it at the other end.

You can use this button to quickly open a closed path between two points. Select two consecutive points, click the button, and the path will be opened at that segment.
Unlike the similar button in the Paths tab, this button opens the path between selected points, instead of always doing so at the first vertex. Using this button can alter the first vertex.
If you select a path that is already open and click this button, it will simply be closed.

This button can break one path into two or more separate paths. To do this, open paths require at least one point to be selected, closed paths require at least two. Penpal generates new path objects in your layer, next to your existing path, and disables the visibility of the old one.
If you select only one point on a closed path and click this button, it works a little differently. Instead of generating new paths, Penpal will split the path at the selected point, so that you have an open path which is the same length as the closed one but has one extra point. This is essentially the same as using the Scissors tool in Adobe Illustrator.

This button is exactly the same as After Effect’s native Set First Vertex operation, and will set the selected point to be the first vertex.

This button will force all selected points to shift so that they are located on the nearest multiple of a value. The default of 1 snaps them to whole pixel values, eg 1, 2, 3, 4 pixels. A value of 10 would shift them to the nearest multiple of 10 pixel values, eg 10, 20, 30, 40 pixels. This snapping is relative to the active Space, so it will only snap to the actual composition pixels if you are using Comp space. Otherwise it is best thought of as snapping to pixel values rather than pixels themselves.
If you hold Alt while you click the snap button, tangents of selected points will also be snapped.

Change the value for pixel snapping. The value you enter is permanently stored, even after you restart After Effects.
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