Think Bigger From Filmora User Guide

Freeze Frame

Use the timeline zoom controls to magnify the timelin, so you can easily find the frame you'd like to freeze. Then, place the playhead at that location. Click on the Speed icon to change video speed and select the Freeze Frame option from the drop-down menu.

speed and duration

Choose the “Freeze Frame” from the timeline, and you’ll see 2 options: “Customize Freeze Frame Duration” and “Delete”.

reverse speed on mac

Choose “Customize Freeze Frame Duration” and you’ll see a new window. Now you can adjust the settings to meet your requirements.

reverse speed on mac