Hi @GAUSS,
Here would be the “secret” formula with a delay:
(0+(interpAccel(#DNOW#-#VAR_1_T#,500,1000,2)*100))
This could be an example for transparency. Starting at zero 500 ms (value 500 in expression) after your condition and ends at hundred in the next 500 ms (1000 value).
(in general, please just watch if you are using #DWE# in seconds or #DNOW#-#VAR_1_T# in miliseconds)
(we just discussed this topic with @roycaruso) 