The interface seams to have changed somewhat since the last time I have use kdenlive, therewith I would like to ask you for a bit of assistance on the matter.

I ve recorded a few videos, mostly screen recordings:
1920:1080
with: recordscreen
Now I would like to rended those videos and I need to construct a rendering profile for them.
I need the best possible settings for 1080p

I know that the question has been asked before and I have see some of the previous answers but the interface seams to have really changed and I cannot really find my way around. Could I ask you to help me out.

Thank you for your time.

You say you need the best possible settings... Best in what? Quality - drag to full quality. Size - drag to the othe side.
Right above the buttons you find a checkfield to open more options - this will give you full control as before.