macOS: Paste the current selection with the right mouse button?

Discussed in https://github.com/raphamorim/rio/discussions/749

^{Originally posted by tjatjagithub November 2, 2024}
I am coming from Alacritty and am tempted to replace it with Rio on my Mac.

In Alacritty, I have a configuration that allows to select text with the left mouse button and paste it with the right mouse button - super standard and fast to use.

As Rio is based on Alacritty, I created those lines for ~/.config/rio/config.toml:

[selection]
semantic_escape_chars = ",│`|:\"' ()[]{}<>\t$/="
save_to_clipboard = true

[shell]
program = "/opt/local/bin/bash"
args = ["--login"]

[mouse_bindings]
buttons = [ { mouse = "Right",                 action = "PasteSelection" } ]

This does not give a syntax error, but it does not work :-(

The selection cannot be pasted with the right mouse button.

Did I do this wrong, or can Rio not do this?

Any help is appreciated :-)
Many thanks!

Reproduce the configuration on macOS using the shown [selection] and [mouse_bindings] entries, starting with the right-button PasteSelection behavior. Trace how these configuration options are read and how mouse actions are dispatched. Done means a left-button selection can be pasted with the right mouse button without a configuration error.