Dave,
I have not had good luck using the GUI with parameters for mapkeys. I usually use a mapkey to set the UI to the old parameter UI style - do whatever adds, updates, deletes and then switch back to the new parameter UI. This gives you normal readable mapkeys. Here are the mapkeys I use to switch the interface (courtesy of Olaf's OCUS)
! Setup parameters using Old UI via config.pro file
! #advanced added for layout menu
mapkey sui.un @MAPKEY_LABELTurn New Parameter UI Off ;\
mapkey(continued) @MAPKEY_NAMETurn New Parameter UI Off (mapkey sui.un);\
mapkey(continued) ~ Command `ProCmdUtilPref` ;~ Activate `preferences` `Open`;\
mapkey(continued) ~ Update `file_open` `Inputname` `I:\PE EASPDM\cad_std\configs\new_parameter_ui-no.pro`;\
mapkey(continued) ~ Activate `file_open` `Open`;~ Activate `preferences` `ok`;\
mapkey(continued) ~ Activate `preferences` `Close`;
mapkey sui.uy @MAPKEY_LABELTurn New Parameter UI On ;\
mapkey(continued) @MAPKEY_NAMETurn New Parameter UI On (mapkey sui.uy);%dr;%dr;\
mapkey(continued) ~ Command `ProCmdUtilPref` ;~ Activate `preferences` `Open`;\
mapkey(continued) ~ Update `file_open` `Inputname` `I:\PE EASPDM\cad_std\configs\new_parameter_ui-yes.pro`;\
mapkey(continued) ~ Activate `file_open` `Open`;~ Activate `preferences` `ok`;\
mapkey(continued) ~ Activate `preferences` `Close`;
Where the two .pro files are either:
new_parameter_ui_no.pro
new_parameter_ui NO
new_parameter_ui_yes.pro
new_parameter_ui YES
Jeff Zemsky