How to make Bluetooth MIDI devices automatically connect, in the same way a Bluetooth mouse does

In macOS (or any other OS), if you have a Bluetooth mouse it works right away after booting the computer (after the first pairing when it's new), and if you turn it off and later turn in back on, it gets automatically detected by the computer and just works, no fuss, no trouble, as it should.

But with Bluetooth MIDI devices it's not like that. Every time you boot the computer you have to go to Spotlight and type "Audio MIDI Setup", then go to its top menu and click on "Window" > "Show MIDI studio", then in the new window that appears, click on the "Bluetooth icon", then in yet another window find your device name and click on the "Connect" button.

Why has it be so convoluted? And that's not the worst part. If you have to switch off the MIDI instrument for any reason (even just to save power) or it just loses power for whatever reason (battery runs out, for example), then, after switching it back on, you have to go through all of the unnecesarily long process in the previous paragraph just to be able to click again in the "Connect" button. It might not seem like much but when you have to do it over and over and over, it gets old very fast and consumes way too much time when adding all of the times you have to do it.

Why do I have to click on that "Connect" button (which is really buried into several UI windows) EVERY new time I switch on a MIDI instrument? If I don't have to do all those steps with a Bluetooth mouse, then why on earth I have to do all that with a Bluetooth MIDI instrument, which is just a Bluetooth device like any other, after all?

So my question is: Is there any workaround or any app that will detect and automatically connect Bluetooth MIDI devices without having to click on any button like the OS should be doing in the first place? (using macOS Mojave on a Macbook Air).

Thank you!