In Pro 2.1.1, I cannot edit the text of feature class names in Catalog View, can only replace the entire string, which.....defeats the purpose of being able to edit object names. Not sure if I can recall any other software that I've used in years that handles file renaming this way.
For example, let's say I have a feature class named "Supercalifragilisticexpialidocious_antidisestablishmentarianism_pneumonoultramicroscopicsilicavolcanoconiosis"
Right-click on it, select "Rename", the entire string is selected.
Mouse click anywhere in the string (let's say you want to Camel Case the string)
Nothing. The entire string is still selected.
Furious double clicking select all of the text to the left of the cursor.
But there is no instance where I am able to position the cursor to edit/delete a single character.
This is an issue with any feature class (SDE, FGDB, Shape).
Object renaming behaves as expected in Catalog Pane