As the title indicates, this would allow better control of waiting times in scenes.
To be able to switch from this:
To one functioning identically to « control a device » with the following fields:
I’m bumping this feature request myself! 
Summer is coming back, I’ll be in the same situation as last year.
My use case is really simple: it’s recommended to filter your pool water for a duration that depends on its temperature.
The calculation is:
Filtration time (h) = temperature / 2
I would therefore like to retrieve the water temperature, divide it by two (already possible) and inject this variable into the field of the Wait block.
Calling all developers! 
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Hi everyone,
I’ve developed this feature 
You can now inject a variable into this action:
As a bonus, I added a new « random » function to the calculations available in scenes, which allows waiting a random amount of time.
Example: Wait between 0 and 10 milliseconds.
Very handy to turn on the light at a random time at home when you’re not there!
The PR:
2 Likes
or for lowering/raising your roller shutters (Somfy via Matter 
) to make someone think they’re using a remote control. I love it!!
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Awesome!! Thanks for this dev!
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There’s no denying it, it’s a festival of features 'all simple' but really nice that you’re preparing for us!
The 'simple' referring to the fact that it can be described in a few words, but I have no idea whether it’s complicated to develop or not
2 Likes
This new feature is available in Gladys Assistant 4.58 :