Dinamically Hide Vars in Inspector with Multiple Select Enum Dropdow

Hello community, Im fairly new to Unity and am still learning, but currently I need to hide/show multiples variables dinamically in the inspector according to, lets say, a dropdown.

I got the hide/show solution from the following link, which works just fine: http://forum.unity3d.com/threads/83054-Inspector-Enum-dropdown-box-hide-show-variables

The multiple selection should have worked in the way presented by one of those 2 links: 1 - http://answers.unity3d.com/questions/393992/custom-inspector-multi-select-enum-dropdown.html 2 - http://answers.unity3d.com/questions/486694/default-editor-enum-as-flags-.html

But I couldnt get them to work (I dont know if its a problem between those answers and the first solution I got)

How can I solve this?

Thank you!