If you want to take a look at how we implemented the Print Station in WML on the ZT printers you can recall the wml file with the below command. The section is named "USB HOST Form Fill". It does get a little complicated but the SGD commands were really designed to work with this menu, not the other way around. I'm not sure how flexible they are to a lot of modification.
Basically, if I'm reading it right, the "usb.host.template_list" lets you look through the templates and pick one. The "usb.host.keyboard_input" turns on and off keyboard input. Use the "usb.host.fn_field_list" to show the current field and navigate fields. The "usb.host.fn_field_data" is where you enter each field. Check the "usb.host.fn_last_field" to verify you are at the last field. Use "usb.host.template_print_amount" to set a quantity to print. Lastly, do "usb.host.fn_field_list" "print" to print.
For making the text bigger- If you add <font name=\"$(display.wml_font)\" vspace=\"0\"></font>, to the <display> node, I think you can modify the vspace attribute to scale the font. I didn't try it so it's just a thought.
Thank you very much,
According to your suggestion I was able to create simplest PrintStation,
I added nav bar button (p2) on main screen to printstation (shortcut) and I modified PrintStation WML code to change ontimer event.
So, now everythings works like a charm.