How do I change long-push time for Shelly Plus?

The gen 1 Shelly web interface has a setting to change long-push time from a default of 1000ms to something different.

How do I do that for a Shelly Plus?

this option does not exist in the Gen2 Shellys

Thanks. Since shelly tracks button down and button up, I’m wondering if there is any way to write a script to calculate the time differential and trigger different actions if the time differential is less than or greater than say 400 ms.