Here’s an idea, if you mean to apply the slew effect to an external sequence. You’ll need to use two channels on Stages, both set to “hold” mode (yellow):
- Mult your sequence into the level inputs of both channels.
- Adjust the shape control of one of the channels to set your slew amount (leave the other at zero).
- Patch a trigger signal to gate input of the first of these channels. This will now toggle between the unaltered input sequence and the slewed version.
As you can see, it’s not gated but toggled (it takes one trigger to turn on slew and another to turn it off). However, if you want, you could use some of the remaining four Stages channels to produce a second delayed trigger to turn the slew back off for each “on”-trigger.
Edit: It just occured to me that you don’t even need the first channel, just set the slew amount directly on one of the sequence stages. Updated my description above.