This is nice, really nice and i see two things that are alike XOOPS Cube 2.1 :
1. Visual : Ergonomic improvement user-friendly
2. Code : hack without
core hacks alike 'Preload'
This is a great gift to Xoops users who didn't experiment Xoops Cube.
This feature can be a spark to transfer from 2.0.x to Cube Legacy 2.1
A user of 2.0.x tries this "Cube Legacy 2.1 type" adminmenu once, he/she knows how hard to use the adminmenu of 2.0.x is.