Description of problem: When creating the cluster I can enter a custom image. Later, this custom image remains available in the drop down list as an option. However, it is not possible to remove it from the list. There are several reasons why I would like to delete the custom image from the list. E.g. I could have made a typo or the image is not available any more. I believe this is a usability issue that would become more visible when RHACM is being used for a longer time. Version-Release number of selected component (if applicable): 2.1.0 How reproducible: always Steps to Reproduce: see above Actual results: I cannot delete custom provided image from the drop down list Expected results: I could delete the custom provided image. E.g. by pressing 'Del' when cursor is on it or by using the 'x' icon next to the image name.