A macro would do it. Here are two examples

/macroicon 1 gearset ;where 1 is the slot in your gearset list of the job you want - this is so you get the icon for the job
/gearset change 1 ;where 1 is the slot in the gearset list
/title set TitleGoesHere

If you want to do it with a glamour plate, do this:

/macroicon 1 gearset ;where 1 is the slot in your gearset list of the job you want - this is so you get the icon for the job
/gearset change 1 10 ; where 1 is the gearset slot and 10 (in this example) is the glamour plate number
/title set "TitleGoesHere"

In both cases, just drop it on your hotbar and use it like you would the normal gearset icon.