Greetings
In the past I have submitted a few questions regarding vector digitizer in Windows (using tcltk) but now I have a few “new” questions, more focused on “customization”.
1- Regarding “Insert new Record into table” item: If I want to edit an existing boundary, I have to uncheck this?
2- I have developed a kind of a GRASS applicable version for classification to be used in my classes but I’m getting a lot of “usability” problems that I can solve by customization of tcltk vector digitalization
please if anyone can help me, can answer the following (if not, who probably can help me?):
a- How can I define a pre-defined layer number (always 1) and eliminate Layer ID check box?
b- How can I eliminate the mode combobox and predefined next not in use?
c- In Form, that is displayed after inserting a new boundary, how can I eliminate data encoding and predefine an option?
d- (this is the complicated): My students are doing a classification procedure in which, for each landcover classe they have to define training areas. Right now they are doing:1) Open v.digit, insert filename and flag -n for Class1(forest); 2) Tcltk vector digitizer usage; 3) save and close vector digitizer 4) open v.digit insert filename and flag -n for class2 (ocean) ( … ) So this is a “heavy procedure” for lazy students 
My question is: can I implement an circular process in which: 1) I open TclTkvector digitizer that asks for Class1; 2) Digizier boundaries bla bla bla 3) Click Next and TclTk’s Vector Digitizer will ask for Classe2 (…) and so on.
Thanks for your help in such an heavy questions
Kim