Workflow Proposal?

Hi all,
I want to do the following
1. Create a Gui
2. Define parameter values through the Guidelines
3. Pass the values to ready-made G-Code

If we suppose that I use ngcgui how can I proceed?

Have a look at this, it might already do what you want:

forum.linuxcnc.org/38-general-linuxcnc-q...ideas?start=10#82686

Thanks a lot andypugh.
It looks like it contains the functionality I need.