almost 2 years ago - Shurenai - Direct link
What...? What indexes? O.o

There's no such thing on the left hand side of the screen by default.

The only thing I can think of is something you yourself must enable by enabling debug mode, and pressing F3.

https://steamcommunity.com/sharedfiles/filedetails/?id=2948919290
Is this stuff on the left hand side representative of what you're complaining about? If yes, Hit F3- Now it's gone.

Alternatively, If for some reason you want certain panels from the F3 menu to be visible, enable the F3 overlay and then open your inventory- Now that you have mouse control, at the top of the panels on the left side are a bunch of checkboxes for various informational outputs that you can enable or disable as you please.

Lastly, I would recommend you to stop enabling Debug Mode since you're not wholly cognizant of it's many features that can be quite easy to accidentally enable. Debug mode is full of a bunch of developer features not entirely intended to be used by players- And is used at your own risk.