have a look at saleseditlines form in 3.0
the init method has the following line
this basically returns the enumcnt. manipulating (returning a differnt number say enmcnt-1) may be helpful. The reason why i used the words "may be helpful" in my originial posting and in this posting is that I have a feeling that this can be manipulated to serve the purpose but I was not succesful myself. (though the help for this says "define the number of selections to choose from in the control."
technet.navision.com Posting date: Thursday, November 28, 200
technet.navision.com Posting path: Navision Axapta