Play and loadBG command

is there one command to play and loadbg when done.

i need to remotely Triger a play in Caspar.
normally i have sent from a custom controller:
PLAY 1-7 sold \r\n

but i am switching things up and want and now would like to to tiger the client to send the commands.
so unless i put both commands in a group, triger the group, i am not sure how i will do this.
is there any way to add more then one command to the custom command in the client?