How to trim videos?

[deama]

Hybrid has an experimental Trim/Cut-Support which allows a single cut which you can use by enabling: Config->Internals->Cut Support (make sure to read the tool-tips).

Cu Selur

I've enabled it but where do I find the start and end options?
EDIT: Ah I found it, it's in the BASE > cut start > cut end. But it's grayed out even though I ticked it?
It ungrayes when I don't use passthrough, isn't there an option to use passthrough with video?