A running collection of Pantheon Terminus commands / tips I have collected for sharing.
For example:
drush MySite.MyEnv config-import --partial --source=modules/custom/myModule
because it is interpreting the command line options after the intial drush command as relevant to Terminus, not Drush and won't know what to do with them.
Instead, you want to add a simple '--' before your Drush command and before adding your Drush options to let Terminus know everything that follows should be passed to Drush.
drush MySite.MyEnv -- config-import --partial --source=modules/custom/myModule