Beginners, Repair, Metrology, General Chat, etc. -- What are these called?

[ez24]

If you look at the home page of this forum
https://www.eevblog.com/forum/index.php
you see:

Electronics
   Beginners
   Projects, Designs, and Technical Stuff
   Repair
   .
   .

Products
   Test Equipment
   Thermal Imaging
   Other Equipment & Products
   .
   .

What would Products be called?  Heading, Title, Topic, Subject  etc ?
What would Test Equipment be called?   Heading, Sub-Heading, Title, Sub-Heading, Sub-Heading  etc ?

The reason is I would like to suggest a new  xxx called "Training", but I do not know what to call it.

Sorry for the seemingly stupid question.

thanks

[xrunner]

SMF calls these areas "Category" ... 

[ez24]

SMF calls these areas "Category" ... 

Ha ha  I missed it totally.

Just wonder what SMF has to do with this.

Sacramento International Airport (SMF)

Would the top level be called Category and one under it be called Sub-Category?

thanks

[xrunner]

Ha ha  I missed it totally.

Just wonder what SMF has to do with this.

Sacramento International Airport (SMF)

Simple Machines Forum -

https://www.simplemachines.org/

Would the top level be called Category and one under it be called Sub-Category?

thanks

There are only categories and boards, but there can be child boards of main boards.

Category
    Board
       Child Board

[ez24]

Category
    Board
       Child Board

Thank you very much 

[xrunner]

The reason is I would like to suggest a new  xxx called "Training", but I do not know what to call it.

Be looking for your post on this suggestion then.