Pipeline 2.6.11 update

Hello!
Sorry for the long downtime, here is a quick update and a hotfix

[added] option for 'step' increment when generating categories
[added] saving master added an option to not open the file
[added] trailing zeros on preset generation
[added] option to use '-' for object names
[fixed] import action is now preserving references
[fixed] bug when closing the dock and trying to call it again throws a 'internal c++ object already deleted'

PIPELINE