Quick Question Around Subflow EV's

I tend to add a UI defined Variable for a subflow - :white_check_mark:
But inside the subflow, it needs to get updated later (periodically)

So lets call this EV, the "Initial Value" (the label at least, but behind the scenes its called "CurrentValue")

Can I update it internally? if so - is its written to the FS? - My default storage is the FS.

I hope this makes sence

Thank you please!

All env vars are defined in the flow JSON and are only evaluated when the flows start. The only way a value can be changed is by restarting the flows so they get re-evaluated.

Thanks Nick.

I guess I need to use logical OR for my needs.
no problem of course, was just curious if its possible