We don't want to provide image manager screen in Image Map editor. How can I disable "choose image" button ? I attached the screen shot to show which button I exactly want to disable.
Once you install the controls, you will find the EditorDialogs folder in the installation folder in a similar location (the version depends on the installed one): C:\Program Files (x86)\Telerik\UI for ASP.NET AJAX R3 2017\EditorDialogs
Please, note that both the dialogs and the DLLs used in a project have to be taken from one and the same controls version.