Index not found in Indesign

[sigcarlo]

I have now followed all instructions. I have uninstalled all apps, used the Creative Cloud Cleaner Tool, and performed a complete, clean reinstallation of InDesign 20.5. The Indexing feature is still completely broken. The 'Index' option is missing from Find/Change, and the Topic Levels dialog does not work. Any ideas? The tech told me he would escalate and get back to me in 4 hours, it has been 4 Days.

[Peter Spier]

My work does not involve indexing, but I'm a little confused. You say there is no index option in Find Change, and to the best of my knowledge that has forever been the case. 

I think you're going to need to provide a better description of how you are trying to build your index for anyone here to be able to help.

[Frans v.d. Geest]

What do you mean by "The 'Index' option is missing from Find/Change"? There was never such option. Can you place a screenshot of what you think you miss? Do you have the Index panel open to add a selected text to the Index?

(Images from: https://www.nobledesktop.com/learn/indesign/creating-an-index)