Is it possible to customize the Responsive Layout - sequence of ToC, Index, Filter tabs?

Hello,

I am using RoboHelp 2015 and in Responsive Layout output, I need to re-arrange these tabs. I want the Dynamic Content Filter tab to be displayed before ToC.

Is it possible to re-sequence the Filter tab before the ToC tab by doing some backend work in code or CSS?

Or the other enhanced way - if we select filters say - Sales, then the Sales related topics should be displayed (rather expanded below it - just like Expanding Text).

Is it possible to customize Responsive Layout in this way?

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Thanks

Kshitija