Quick select mode in Wezterm allows you to identify patterns in the current visible screen; Wezterm then highlights each and provides a key to each allowing you to copy and/or paste the associated value. Activate it with Ctrl-Shift-Space.

As examples:

• It matches sha1 and md5 values. Use these to match a git ref in a log so you can then inspect it.
• It matches Docker container identifiers; use these to match a container identifier so you can run a command in it or copy a file from or to it.
• It matches URLs; use it to identify a URL to pass to HTTPie.
• It matches paths; use it to match a path to perform a file operation on.