Running Multiple Activities with Harmony/Webcore/Alexa

I want to be able to run multiple activities example:
Activity 1: WatchTV ( turns on/off projector, set top box, receiver)
Activity 2: Accent Lights ( turns on/off accent puck lights)

i want to be able to turn on and off the accent lights without turning off activity 1(watchtv) now i have added the accent lights to activity 1 before and they will turn on with activity 1 but i wont be able to turn off just the accent lights with out turning off activity 1 completely. i have added in ST the harmony hub and added accent lights activity and used Webcore to create just a turn off piston however i am not able to get it to work. are there any work around or suggestions?