I use an innerclock sync gen and a modular host (Sensomusic Usine) which allows midi triggerable snapshots of a interface item that controls master tempo to be recalled instantly. Essentially what I do is have the OT send a program change to Usine every pattern, which in turn triggers whichever tempo I have selected for that snapshot. Works a charm!
![](http://www.elektron-users.com/components/com_fireboard/template/simplementefutbol-template/images/english/emoticons/cool.png)