As I have been building out a fairly deep organizational structure using the "Filter" feature, I would like to bring up one thing to potentially add. I have seen similar idea posts on here but hopefully this is a quick and easy to implement solution.

When an email comes in that has a slight difference that goes outside the filters already set, I would like an "Add to Existing Filter" function through any of the emails I open.

Example:
1. Open an email in "Inbox"
2. Click the "Filter On" button which already shows:
- Subject
- Sender
- Recipient
- Attachment
3. Click any of the following but include an "Add to Existing Filter" in the "Add filter" popup window.
4. Selecting "Add to Existing Filter" will allow you to select an already existing filter to edit.

OR

Put the "Add to Existing Filter" as a fifth option after clicking the "Filter On" button. If you do this, you can shorten "Add to Existing Filter" to "Add to" to keep it more in line with the other four option's text length.

Currently I have to go into settings, scroll through to find the filter, have both an email window and settings window up to make sure I apply the changes to the specific filter correctly.