Not directly as far as I know. But there is a (rather complicated) possibility to transform those datasets into a file format that can be imported into FT3. I gave it a try in Windows (though there might be much more, better and faster ways in Linux/Unix) and have converted one file (Map07 - 20Ma higher resolution) to a .mdr file which looks like this in FT3+:

The data behind this map belong to Christopher R. Scotese and Nicky M. Wright and they are using following licence: Creative Commons Attribution 4.0 International

And the exported map in CC3+ (Jendor-Style):

Here is the belonging CC3+ File if somebody is interested...

...and changing the colour palette inside CC3+ gives me the same world as an icy one - i only a few clicks... 😊

Thank you @jslayton for this explanation!

This map is a plain CC3+ output - from a FT3+ world and the shading (of the whole map/world) can now be controlled inside CC3+. Great - I love it! Thanks!

I would like to see most (all) of the available commands in menus or buttons or menus that appear when you right click on a button.

There are plenty of useful commands that you have to type in manually in the command line.

When you have not used them for a while you start to ask yourself was it PALLOAD or LOADPAL ? and a newbie does not even know that this command exists for changing the colour palette...

...or the command EXPORTSETMPPP @Loopysue just mentioned above...

...or the command SIMPLIFY is not available either in a menu...I think...

I tested the projection on Nibirum and I think it looks quite interesting...