I used to do the same for making Google voice calls for specific numbers, dial my gv # then pause, then 2, then pause, then dial then number I wanted to call, then press #.
I found on my S5 I had to do three comas before the 2 and two comas after it, or it would not work.
Also, try using the wait option in the "sym" menu
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Droid Razr HD XT926 -- using SlimKat 4.4.2 current weekly release (compass working finally, although it is off by approx 30 degrees, I'll take it!)