[solved] Property Editable for specific fields in forms

Hello,

i want to set the property editable to some fields in a form.
I know I have to set the form property to editable and then change all fields to editable=no to all fields what should not be editable.
Problem might be, that some day s.o. adds a new field on this form and then by default this is editable.
Is there s.th. like that:

On Activate Form:
CurrForm."AllFields".editable(False)??????
CurrForm.MyField.ediable(true)

Thank you

geri79