Debian 9: Is there any GUI to add OpenConnect VPN-connection in ConnMan?

On a lightweight Debian machine I am using ConnMan instead of NetworkManager. For this I installed ConnMan based on the following packages: - connman - connman-vpn - cmst Ethernet, wifi, virtual bridges etc. are working completely fine. However, it seems to be impossible to graphically add a VPN-connection (openconnect) via connman's cmst-GUI. Do I have to create config-files for every VPN via text editor by hand? ---------- In NetworkManager this was a pretty easy task within the GUI. First, install the packages - network-manager - network-manager-gnome - network-manager-openconnect-gnome Afterwards it was possible to set up the VPN inside the GUI. ---------- In ConnMan this intention seems to be a bit different. So the final question now is: **How to set up a Cisco AnyConnect compatible VPN-connection (OpenConnect) for use with ConnMan?**