>Is there the possibility to change at runtime the selectcmd property? To reduce the number of fields I need every time to change my select command. Alternatively I have to set every time a select * command that is not the best solution... Someone can give me a suggest.?

Add properties that specify the fields you need, build the select command in .beforeCursorFill() using these properties and call .CursorFill()

oCAD = getCursorAdapter(…)
oCAD.FieldsNeeded = '…'
oCAD.cursorFill() && .beforeCursorFill() re-builds the selectCmd using .FieldsNeeded
…
oCAD.cursorRefresh()