Add an adjustable Attack and Decay time for the sequenced effects

What is the problem?

The sequenced effects start and end very abruptly. Which is sometimes nice, but not always.

What should this feature achieve?

That feature would give the option to let the effects smoothly fade in and out. That would open up many more musicality concerns.

Are there any workarounds?

Any links to related discussions?

Any references to other products?