Partymode is an add-on for Kodi that will automatically launch one of your other add-ons you’ve selected as a favorite every time you open Kodi. Here’s how to set it up:
First, decide which add-on you want to auto launch.
Go into Kodi settings > Add-ons > My add-ons > Video add-ons (or whatever category your preferred add-on falls under)
Find the add-on you want and long press the select/okay button to bring up a menu. Click Add to favorites.
Now you need to install partymode. Luckily it is already in the Kodi repository, so you don’t need to add any new sources or anything like that.
Kodi settings > add-ons > install from repository > kodi add-on repository > services > partymode autostart
After you’ve installed it, click on it and then go to configure. Enable it, change the delay to zero, then go down to “run favorites”. Hit select from favorites. The add-on you previously marked as a favorite should be there so you can select it. Don’t forget to hit okay on the right before you close out. Now force close Kodi and open it back up again. The add-on you selected should automatically open.