I have a need for a model that all the input may be optional and allow the "Selected features only" option. So, I developed a model that fakes it all as seen in the example below
I realize that some SAGA algoritms acepts none input, so it can start de process allowing the selected features either. I create some regular points to use in the merge, so the next algoritm will always receive something and don´t cause an error.
The question is. Is this the only and viable solution, or the long way one? because regardless the input, it takes at least 6 seconds to finish, even empty.