Feature request: Merge Tabs

**Is your feature request related to a problem? Please describe.**
Often, I am loading 10s or even 100s of tabs to extract data (e.g. urls) from similar files. I can save the data as a zip file but it would be great to be table to merge all the tabs into one, with a new line delimiter.

**Describe the solution you'd like**
Two possible options:
- an operation which could have more flexibility: choose the type of delimiter or include the tab number as a referece.
- an icon on the output pane which simply merges all the tabs with a new line delimiter. The undo button if possible could revert the operation if done in error.

**Describe alternatives you've considered**
At the moment I could save the zip files and merge them and then re-ingest into CyberChef. Unless someone has a better option.

Thanks again for such a good application.