**As** a user
**I Begin of the insertionwant** more fine-gained controlEnd of the insertion Begin of the deletion want to** show results onlyEnd of the deletion when Begin of the insertionfiltering via attributes/fields that areEnd of the insertion Begin of the deletion all selected values in aEnd of the deletion multi-select Begin of the deletion filter matchEnd of the deletion
**so that** I can Begin of the insertionclearly use AND, OR and NOT operators (without ambiguity), and also search based on whether a field is empty or not

### Context

Today, you canEnd of the insertion Begin of the deletion get an ANDEnd of the deletion filter for Begin of the insertioncustom fields of type "list" that can accept multiple values. However, the existing set of operators _(is, is not, all, none)_ doesn't allow users a lot of control, and introduces ambiguity. Does "is" mean that all of theEnd of the insertion Begin of the deletion thisEnd of the deletion selected Begin of the insertionvalues must be present, or one one of them? And how do I select fields that have a value (any value), so I can remove only those work packages where the field is blank? Or view only those work packages with empty values? End of the insertion Begin of the deletion filterEnd of the deletion

Begin of the insertionThe current list of operators does not make this very easy. This work package proposes distinguishing between the list of available operators for single- and multi-select attributes.End of the insertion Begin of the deletion **Context**End of the deletion

Begin of the insertion### **Acceptance criteria**

* **For multiple choice,** add the following separate set of options for more clarity:
* "**is (OR)**", only one of the input values needs to be present 
* "**is (AND)**", all of the input values must be present
* "**is not"**, cannot have any of the input values (negative OR)
* "**is empty**", field must contain no value
* "**is not empty**", field can contain any value, and any number of values, but cannot be empty
* **For single-choice,** make the following changes:
* maintaining as is:
* **is**
* **is not**
* removing: **all**
* renaming: "none" to "**is empty**"
* adding: "**is not empty**" (field can contain any value but cannot be empty)

> ### Original context
>
>End of the insertion Custom field of type "List" with "Allow multi-select" checked, and "Used as a filter" checked. Then on work packages list, add a filter for this custom field. Begin of the deletion

**Acceptance criteria**

* Add a "is all of" operator
* Maybe rename "is" operator into "is one of"End of the deletion