If you have InDesign CC 2019, when you select a Hyperlink and look in the Properties panel, you will see 3 buttons – ‘Remove Hyperlink’, ‘Edit Hyperlink’ and ‘Manage Hyperlink’.
Remove Hyperlink does what it says – it removes the hyperlink. However, it retains the applied Character Style which can be manually changed by clicking the [None] style in the panel.
Manage Hyperlink opens the Hyperlinks panel (if it’s closed) and Edit Hyperlink lets you edit it.
Hope this helps.
Adobe InDesign teamErin commented
I found the problem - the admin is right BUT you have to have the hyperlink window visible. Otherwise it is impossible.