Here are all important links:
http://lmms.io/forum/viewtopic.php?f=1&t=4740
-A few rules and useful forum instructions
If you like to introduce yourself, to the community, go here:
http://lmms.io/forum/viewtopic.php?f=4&t=4480
Atm there is no support for CC import. It may come in next release. You need to use LMMS automation-tracks, in order to change volume over time, in current release.
Tutorial:
https://docs.lmms.io/user-manual/3-navi ... automation