Allow "Custom Filters" to be named

## Guidelines

Please note that GitHub issues are only meant for bug reports/feature requests.

## Feature request template

**Is your feature request related to a problem? Please describe.**
A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]

When making multiple custom javascript filters, sometimes they get confused or mixed up, making me need to search for the correct filter to apply.

**Describe the solution you'd like**
A clear and concise description of what you want to happen.

Custom filters should be able to be named.

**Describe alternatives you've considered**
A clear and concise description of any alternative solutions or features you've considered.

**Additional context**
Add any other context or screenshots about the feature request here.

"Custom filter" should be able to be renamed