Dear MantisBT Developers,

I am writing to request a new feature for the filtering functionality in MantisBT.

Currently, the category filter allows users to select only one category at a time from a dropdown list. This limitation makes it difficult to quickly view issues that belong to several specific categories at once, which is a common use case for many users, including myself.

I would like to propose a modification to the category filter to allow for multiple selection of categories. This could be implemented by changing the current dropdown menu to a multi-select list (e.g., a checkbox list or a list box that supports holding down the Ctrl key to select multiple items - maybe this multiselect is better choice for me).

This feature would significantly improve the user experience and save time for users who need to perform advanced filtering operations.

Thank you for considering this request.

Best regards,

Sławomir Bućko
Ministery od Finance, Poland