you can do this indirectly in some ways… for example, on the OT you can p-lock both Retrig and R-time… so if you have some steps that have the R-time set to different values… (like 2 on one step, then .5 on another step, then .777 on another, etc.) but then you leave the Retrig parameter set at 0, then you can use a scene to lock the Retrig to 2 or 3 or something, and then when you activate that scene, those p-locked parameters will also come into play and affect the timing of the Retrig, then when you go back to the default, the retrig stops happening and those p-locked parameters arent affecting it anymore
this concept can be applied in a number of ways… basically the idea is that you set up conditions for a particular scene with p-locks on parameters that directly relate to other parameters which are then activated by that scene