Now the quickbuttons are located in the most far and most time taking place - in the end of directory path.
Is it possible to make this change to ui?
The buttons for back/forward/parent will be on the left, and also larger, if you use the File Display Toolbar instead of the thin border.
There is a bug in Opus 12.2 Light which can result in Opus switching to the thin border if some related settings are modified, and then not being able to switch back. This was recently fixed in the 12.2.5 beta, and a solution is described here: Re: Where did my breadcrumb go?
How can you add File Display Toolbar?