Windows Terminal - Opening any profile within a new pane

The latest Windows Terminal (preview) v0.7 allows the opening of multiple command prompts in panes, in the same tab.
For now, you can only open the default profile in a new pane, but there's a simple workaround until a next release will allow this.

Start Windows Terminal, open Settings and create a new "defaultProfile" line for each of the profiles available, with their respective GUID. Comment all but the one you want to use as default. Save and close the profiles.json file.

Then, when you want to open a different profile in a new pane, open Settings, comment the default profile line and uncomment the line with the chosen profile. Save the file, switch back to Windows Terminal and the new settings will be automatically reloaded. If you haven't changed the default bindings, you can open that profile in a new pane using

Repeat the procedure for any combination of profiles in new panes, as desired :)