Adding link to the navigation - Linking to categories or tags doesnt work

Hello.

I am desperatelly trying to find out how to add categories.

As you can see in the first printscreens from the tutorial - it is possible to add categories in the link editor.

The second printscreen from my own website is completely missing this option. 

Could it have to do with the template I am working with? - Version 7.0– Avenue family (Avenue template)

Thank you so much for help!

7 minutes ago, rm1706 said:

Could it have to do with the template I am working with? - Version 7.0– Avenue family (Avenue template)

You are certainly on an old template, so that might explain it, but you should still be able to add links to tags or categories manually.

See in the following support article:

Category and tag links use the following formats:

• Categories - /pageslug?category=categoryname
• Tags - /pageslug?tag=tagname

https://support.squarespace.com/hc/en-us/articles/115015977088-Linking-to-categories-or-tags#toc-before-you-begin