I'm sorry if this is not the correct category for this feature request but I did't find a better suited one. Is there some other site for feature requests in contrast to bugs? However, I think it would be a great time saver if the "right click on file > open with > other" dialog in dolphin would allow to directly create a new file association. The pattern for the file association should be the extension of the currently selected file name. The program to open the file is of course the application that the user selects in the dialog. The icon for the file association is the icon of the choosen application. Especially for people coming from Windows this would be more familiar. Use Case I perform "right click > open with >other" on a file "myDiagram.graphml". I select the application "yEd" to open this file and mark a checkbox to create a new file association such that all other *.graphml files are opened with yEd as well. The new file association is saved to "application/x-graphml" its pattern is "*.graphml" its icon is the icon of yEd and yEd is the associated program to open such files. A description for the new file association could be something generic e.g. "yEd graphml files". This is a different and IMO often better approach than the "Remember application association for this type of file" option, which the current dialog provides. (BTW: This could also be improved as requested in https://bugs.kde.org/show_bug.cgi?id=110146) Reproducible: Always
I'm not sure this makes sense to do in the Open With... dialog. Providing the feature there would be confusing because it would break the paradigm of the current action (choose an app to open the file with). If you want to configure complex associations and patterns, simply using System Settings to do it would be the best approach.