MetaModel and a filter

Hi,
I have a problem to build a filter with metamodel !
No possibility for me to do a new setting in a filter.
I try this extension with a model to DVD shop: http://now.metamodel.me/a-movie-database/

I have creat 2 news attributs in a metamodels (checkbox) and I want to do a filter this..

I can't to reccord the a second filter after the "Simple Lookup"

Is it a bug in Metamodel ?

Not possibility for me to create a third filter ! ! I dont know the new method to filter a catalog ! !
No tuto, no helps, .... ! rrah :(