Random effects, colourschemes and intensity possible?

Idea for WLED that I I looking for, maybe someone also too:

Have a selection of effects
selection of colourschemes,
Range of speed, and the other slider.
Timer input and order range setting of the timer

Output WLED on above settings:
Cycle trough all selected values combining them randomly within the boundaries set for each line above, for the length as stated in the timer or range of timer.

I do not know if this is something anybody else “misses” and if it can be implemented anyway.