After compiling and/or installing gms, start Geany and go to menu Tools->Plugin Manager and set checkbox at gms plugin.
After configuring, go to menu Tools->Plugin Manager and click to "Mini-script". Geany opens a gms dialog box:
o With the combobox, you select the script type, o In the text view, you write the filter script. o In the input area, you select the filter input:: * current selection * current document * all the session documents o In the output area, you select the filter output:: * current document * new document o and you click on the apply button.