Improve Export Tool to Support Multiple Content Type Selection

[nikitasolanki1812]

Currently, the Tools > Export screen in WordPress only allows exporting one content type at a time via radio buttons — "All content", "Posts", "Pages", or "Media".

Issue:

Users who wish to export multiple specific content types (e.g., only Posts and Pages) cannot do so in a single operation.

They are forced to run the export process multiple times and manually merge or manage multiple WXR files.

🛠 Suggested Enhancement:

Replace the current radio buttons with checkboxes for "Posts", "Pages", "Media", and possibly Custom Post Types.

Allow users to select any combination of content types.

Update backend logic to collect and package selected types into one export file.

[mayanktripathi32]

I agree — this enhancement would significantly improve the user experience on the Export screen. This will allow user more freedom with what they want to export in a single file.