Is there a way to whisper to both a group and select clients on a single hotkey? The reason is that not all targets of some whispers are in the one server group.

eg.
On my Guild Wars 2 (MMO) server TS we have a group called Commander. On occasion when aid is required, we do call outs to them.

Groups > Server Groups > Server Name > Commander > All Channels

The issue is that as well as the people who fall under the commanders group, there are a few others to call upon who do not fall under the group.

Clients & Channels > Contacts > User A/B/C/etc.

The TS client won't allow me to add both groups and clients to a single whisper list, nor add multiple whisper lists to a single hotkey. Or I just haven't found out how and could be pointed in the right direction...