Middle Mouse button in Fluxbox (slackware64 13.37)
 

I'm running Slackware 64 13.37. I'm trying to use the middle mouse button with Fluxbox for grouping tabs. The problem is that it doesn't work as it's supposed to.
The middle mouse button works in FF so it is enabled.
In fluxbox you should be able to drag a window title bar with the middle MB to group tabs. When I click on the title bar with the middle mouse button the window goes behind some other windows. It doesn't allow me to drag the window. When I click on the desktop with the MMB, it unfolds the menu with workspaces (that's the correct MMB behaviour in Fluxbox)

I remember using the fluxbox's tab feature in the past versions of slackware. Can anyone help me with this? Is it some slackware's configuration that prevents it. In the fluxbox configuration I've got:
Tab Placement: Top Left
Tabs in Titlebar: yes
Maximise over: yes

Sorry for bumping my own thread. Does anyone runs fluxbox on slackware 13.37? If so what is the behaviour of MMB?

An update. Helpful folks at #fluxbox identified what it was. The option to start tabbing was by default assigned to a different key/mouse combination.
The line in ~/.fluxbox/keys was responsible:

If one wants to change it to use the middle mouse button, it needs to be changed to:
and change another setting that uses Mouse2
Problem solved - thanks to the guys #fluxbox

Thanks for posting the solution to this problem. I am currently sorting out how to do a Slackware minimal install with Fluxbox as base for some experiments, so this is very helpful for me.

Restoring Fluxbox's Tabbing Action
 

This has been driving me nuts since upgrading. Thanks, guys!

Tabbing the CORRECT Way!
 

Me too. Sometimes I wish developers would just leave things alone
;)