I would suggest you use the Open Selector option of the Get Element. Select the TdxBar using the select button. Next, you will observe that a tree structure would load in the left pane. Browse the hierarchy and select (Right Click) your component.
If the elements are visible before you open the selector window and you then cannot see them in the tree. Then there is a high chance a developer removed the interfaces windows need to offer accessibility features and therefor also rpa. In that case you need to use image recognition, witch has it own bag of issues