How can i set a global manual time for the scroller?

I use on gio a lot of generic scroller. (Generic/scroller dimmer)
In manual when i give an level for the scroller, then it roll too fast, hard.
The "show settings/manual time" isn't good. I want setting example 2s, just for the scroller. In the cuelist, the time, sets the cue time. But in the manual, how can i set time for the scroller? Maybe in the patch?

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