Changing drive tag names or selecting more than one tag at a time to run a drive search

Too late I realized my poor choice of naming drive tags.

Now I need a way to easily change the tag names.

As an alternative: it would also help if I could search for multiple tags at once. For example: if my tags are named Apple, Banana, Cucumber, and Potato - I would like to be able to get a drive report on Apple and Banana rather than doing one on Apple and then one on Banana and then manually adding up the numbers.

Background: I am using the car for work/business. For some drives I get reimbursed from my employer while for some others I don't but those I can list as business expenses. I contract with multiple companies and need more flexibility in the reporting.