Hi there -
thanks for mentioning our LEGO track planning app for macOS!
Indeed, a library for ME Models tracks has been added recently and we bundle a bunch of other LEGO track systems with our apps.
We provide the complete and up-to-date list of track libraries on our web site at http://www.railmodeller.com/libraries.html
Please note that we also offer RailModeller Express, a app for planning small model railroad layouts on macOS for free.
Details and a download link can be found at http://www.railmodeller.com/express-edition-en.html
Thanks,
Jan
(Author of the app)
