ScreenFlow User Guide
Menus — View

This section contains information on each item in the View menu of ScreenFlow:

Zoom In / Zoom Out / Zoom to 100%

Zooms the visible preview area of ScreenFlow.

These options only affects your preview.
They do not crop the canvas, or change the size of your exported movie.

Zoom Timeline to Fit

Zooms the Timeline to fit in your window.

Snapping

Toggles Snapping for both the Preview and Timeline.

When snapping is on, the mouse will snap to various guide-lines.

For example, in the Preview Area, the mouse will snap your objects to the center and edges of your canvas. It will also snap to other objects, if you have any. In the timeline, the mouse will snap to the beginnings and endings of actions and clips.

You can temporarily toggle snapping by holding down the command key.