Variable on the screen/constant speed of the axes

Good day staff, need help.

my English is not very good, but come on

1 - must read a variable # and write it, how do I put a field on the screen for that?

2 - need a contactor of time may be using a macro to switch off at the beginning and end, and an increase value in a variable. The purpose of this is that output must increase the spindle on the basis of working time, if someone has other suggestions thanks.

3 - when working with the variation of spindle speed on each line of the axes are not constant, even while the G64 active. or just what happens on the screen that? because I called the engine yet. how do I turn off this feature?

thanks, regards to all

Luciano