The extract action will extract keyframes from your asset. You can specify how many keyframes you wish to extract from assets you import, while configuring your extract action. For example, you might want to extract 10 keyframes during the import, and then choose which one will act as the poster keyframe for your asset.
From the toolbar in the Dalet Flex Console, click New and select Action from the drop down menu.
In the Create new Action… section, complete the following fields:
Next, click the Configuration sub-tab.
Expand the Extract Frames complex, by clicking the + icon.
In the Set a Master Frame field, enter a number.
In the Fixed Interval field, enter a number.