Well, I've just tested the patches (v1, v2 & v3) provided by me in the first post.
Merge against 7690 was successfull and without any conflicts and all seems to work as intended (ie. as described in the first post). V2 and V3 are, however, no longer compatible with 0.12 branch.
Of course it mey need more extensive testing, but that's why I've posted patch here.
Any useful comments and suggestions are welcomed, but posts like 'not working' or 'any news?' ane not much useful
I know I've promised further improvements, I kinda suspended work on that when other patches (arclite's ...) were posted here, but I will continue.