Favorites and Multifunc

I'd like to use Multifunc argument in my Favorites.
When I middle-click on a favorite it is opened in new tab, however I'd like to use also findexisting,tofront arguments.
So I tried this command Favorites SHOWICONS NEWTAB=findexisting,tofront NOOPENINTABS USEQUALKEYS MULTIFUNC=tabs and unfortunately even the left click on a favorite opens it in a new tab and I don't want this. Left click should open favorite in current tab

How about

Favorites SHOWICONS NOOPENINTABS USEQUALKEYS MULTIFUNC=tabs

Yes, however I'd like to take advantage of these arguments "findexisting,tofront" while I use middle click mouse