G15 on Linux

Hi all
so i have finally been able to get my G110 working under Ubuntu and recording/running macros.
my question is: is it possible to insert delays between keystrokes when recording macros with g15macro? is there some way to manually edit the g15macro.conf file to achieve this effect?
the issue im having is, i use the G keys for macros when playing an MMO. one particualr macro is used for activating 2 different
skills, in this case they're mapped to 7 and R , the problem is when i activate the macro the R supercedes the 7 because there is no delay between 7 and R.
Hopefully there is some way for g15macro to record millisecond delays between keystrokes.
Any help/advice would be greatly appreciated.