Watching this thread one item comes to mind regarding expandability without having to re-code the LSP program.
I'm sure some sort of XLS file can be opened to read but since I am more old fashioned I would suggest an INI file (named CFG).
[Manufacturer Name #1]
model=
lengths=3,4,6,8
etc.
Parse this and populate 2 list boxes in the dialog.
When Name is selected from the first list box, action_tile and repopulate the other list box with the available lengths.
The index return of the second list box can be used to target the model number.
Edit the INI file and not the LSP file.
Scot-65
A gift of extraordinary Common Sense does not require an Acronym Suffix to be added to my given name.