nm-client does not store openconnect VPN passwords

I have openconnect VPN configured to connect to my workplace network. In nm-applet (gnome version of networkmanager), I get an option to store passwords (both PEM key password and the actual VPN password).

In plasma-nm, I get an option to "Show password", but no option to store. I then need to enter the password every time I want to connect to VPN.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: plasma-nm 0.9.3.2-0ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-5.20-generic 3.13.0
Uname: Linux 3.13.0-5-generic x86_64
ApportVersion: 2.13.2-0ubuntu2
Architecture: amd64
CurrentDesktop: KDE
Date: Tue Jan 28 08:20:23 2014
InstallationDate: Installed on 2014-01-24 (3 days ago)
InstallationMedia: Kubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140121.1)
SourcePackage: plasma-nm
UpgradeStatus: No upgrade log present (probably fresh install)