The KER window closes if I enter the action group window inside the VAB/SPH. Not really a bug but would be nice if it stays open and gets a dry mass display as well.

Useful for some other mods like RealChutes (setup for the chutes is made inside the action groups screen).

Dry mass would be useful to know how many parachutes I have to attach for reusable stages. Atm I have 2 windows open always (mechjeb shows only dry mass) but I really prefer the engineer window.

See if this does it for ya without exploding anything.
KerbalEngineer.zip

Stays on screen now. Don´t get any errors. Great!
Only missing the dry mass now if you have any plans to include that.

Should be easy enough to change

Would be realy nice