How do you automate in Reason? I found a few ways to setup parameter automation in Reason which are easy to setup.
The simplest way to automate a parameter is to right click the control and select "Edit Automation". A new automation lane is created for that parameter.
But what if you want to get a list of all parameters that can be automated on a device? To do this you need to select the device and then select the track parameter automation drop down located at the top of the track list.
Reason Documentation
https://help.reasonstudios.com/hc/en-us/articles/360002216673-Reason-Documentation-and-Help-Files
Reason (Latest Version) Operation Manual
Lane details > Creating/adding lanes > Creating/adding parameter automation lanes
Note and Automation Editing > Automation editing
https://www.soundonsound.com/techniques/reason-automation-situation
https://ask.audio/articles/6-propellerhead-reason-automation-tips
https://www.musictech.net/tutorials/reason-pu-12/
https://www.edmprod.com/automation-guide/