Okay i made a macro to save space on my non custom UI and i came up with this
/cast [button:2] Immolation Trap(Rank 2); [button:3] Freezing Trap(Rank 1); Explosive Trap(Rank 1)
Left-click to cast Explosive Trap middle click to cast Immolation Trap right-click to cast Freezing Trap
I had some other but turned out they were already on a Website... And if you have higher ranks of the Spells above then just change it to the number of yours and ou set.
Hope this macro helps enjoy.