Yes, just disable the animation and set it to the frame you want to hold.
If you're looking for Nuke nodes in Fuison, I've put together a setup that mimics Nuke's nodes, layouts and hotkeys for Fusion. Should help in a transition period or if you're just looking.
Check it out here, and let me know if you're missing anything.
https://github.com/statixVFX/nuke2fusion