XnView Software

It will be nice to have full screen zoom possibilities with just pressing the mouse button (configurable left, right or middle button), and when you realise the button zoom return to default. I think that will improve workflow if you looking for some small details on the picture.
For me personally ...

There is any way to draw circles or simple lines and chose a colour of this simple drawings?

Thanks for your answer.
So, for XnView MP there is no any plugins or addons?

I'm a fresh user of XnViewMP software, just a few days.
I tried to ad new addon from this forum ( http://newsgroup.xnview.com/viewtopic.php?t=11715 ), add on "Basic paint features (text, line, rectangle, watermark, ...) in view mode" . I downloaded file named "paint" on my desktop and unpacked it to ...