when I select a player a hit make it expiry, it expires everyone within the squad. Is there anyway to make it so it just expires the player selected?

Should do with selecting one player and then right click him and use the Preset

 

When you click the buttons on the right side of the FMRTE windows they work for the whole team

It is also  one of the FAQs I added 

So full explanation is there

will close this as answer given if further input required just PM to get reopened