Wish designer propertys from runtime at loadlayout

[MarkusR]

hello,
i have a great idea to make the designer propertys more flexible / useful.

i like to have the possibility to call a sub and the return value is used at loadlayout.
i believe other editors would name this input expression / formula.

as an extra field /data beside all property types which is used at runtime
maybe a mini button at each row with symbol to start expression editor popup.

this feature will be backward compatible.

.Text = Call CodeModul.Resource("Key")
.Color = Call CodeModul.Color("Key")
.Boolean = Call CodeModul.Checked("Key")
.Value = Call CodeModul.Value("Key")
.List = Call CodeModul.SelectList("Key")