Designing/importing ideal profile curves as overlay


I have been using Artisan and its “Designer” tools to design some ideal bean temperature and derived RoR as a template/overlay for me to control my roasting. This servers as guide to experiment different roasting profiles.

I have not been able to find similar tools for RT (v. 2.5.5 stable). It would be great if eventually such tool is available in RT future release. For now, would it be possible to generate those curve outside of RT and import it in? It seems there is a way to import profiles (Tools >> Import Roast). Could someone share how to do that or point me to the right direction?