Some bugs.

I have good alternative can you make Command - Activate Default StreamLine Tool. It will just activate Default SL tool. It will allow us to change default SL tool freely without changing all Action Events that is linked to it.
For example now I have all SL tools On RMB set to - activate Selection SL tool(It is now default SL tool). But if I change it to another tool I will have to change all ON RMB actions.

http://www.digitalfossils.com/Download/NVil-Feb-17-16.rar
* Edit > Customize > Tools > Common Modeling Shortcut Tools > Activate Default StreamLine Tool.


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Did you use RMB-Down event for this? If so, there would be no way you can assign a basic tool to RMB.
If you use RMB-Up event, It would be possible if the basic tool has "No Action Event". A basic tool's name ends with "*" if it has this event.

I'm going to use it with On RMB Click, looks like it works.
But now On Click(RMB, MMB, LMB) events stop to work with Default SL tool.

I think RMB-Up is better. Because performance issue may make click event unreliable as when you press down mouse button some action may happen which takes time.

Because Default SL tool's mouse click is used for selecting, that's why click and mouse-up events are disabled. Do you have reasons why they should work?

I want to set to Default SL tool ON RMB Click or Up - Activate Last Stream Line tool. This is essential thing. Because all tools have on RMB Activate Default SL tool and Default SL tool have - Activate Last StremaLine Tool. This is the idea of fast navigation with RMB between SL tools when you have SL tools stay Live.

File renewed.
http://www.digitalfossils.com/Download/NVil-Feb-17-16.rar

Great, many thanks!