After reading all the posts, the following crystallized out for me:

Please keep the research queue, with the preferred form of being a “thread” or “path”, autoselecting the required research to reach the target picked by the player.
Please make infinite research items autostep to the next level ...

Another suggestion:

Infinite research should be truly infinite, I believe. This meaning that if I have selected an infinite item, it should keep researching it without me selecting it again, even after reaching another level, until I select something else.

So instead of clicking again and again on ...

Here is the workflow for how I would expect a well-implemented research queue to work:

I just got Automation 2!

Open the tech tree and browse to figure out what I want next
Find logistics robots . I want those!
Select logistics robots to research next
All the prerequisites are queued. I ...

Hi Factorio Heroes,

I have the slight feeling the dev team keeps over-complicating the Blueprints... let me share my thoughts on this.

Blueprints are ideas , and ideas can be copied endlessly and they are difficult to erase. This would be my guiding principle when designing anything around them ...