If I have a custom variable list of the values A, B and C, I'd like to be able to bulk edit a list of tickets and add B to all the issues.

So, I'd start with the following issues with the following values in the custom variable:

|issue id| A | B | C |
|143| true | false | true |
|235| false | true | true |
|981| false | false | true |

Then after bulk editing to select B I'd have:

|issue id| A | B | C |
|143| true | true | true |
|235| false | true | true |
|981| false | true | true |

Then I could bulk edit A to be false and get:

|issue id| A | B | C |
|143| false | true | true |
|235| false | true | true |
|981| false | true | true |

This will allow me to label tickets as being for different parts of our project. So issue 143 is not about search, but is about price and images.

Then I can get a list of all the tickets relating to images and set images to true in the list.

I could work around this by making a boolean custom variable for each option on the list but it would end up being quite messy.