I think I understand better what you are wanting to do. You may want to look at the MCS Mini 734 series rather than the 221 series. This series has a t-connector and is multi pole. The picture below shows a 5-pole, but looks like you need the 2-pole version.
Here is a video showing how it works. This series has a lot of configurations possible!
Here is a link to the catalog (see p.367)
Being able to quickly unplug things is a real benefit to this system.
Note that it’s recommended to only use one wire per terminal. Doubling up wires is not good practice in general.