Hi as of now I haven't added that feature so the current way would be to edit the .mmd text.
However I think you are right that would be a good feature to add.
For collapsing downstream nodes I think it would make sense with the request the someone else made in this thread for animations. From what I see it should certainly be possible to implement at some point!
This thread is a weird place for you to soapbox. This is about two companies in Canada. Not only that, but it's about intelligence / security concerns, not airspace regulations.
The nature article makes it sound like a lot of the options listed are being tested because there's some evidence of some effectiveness Vs in the story OP posted, it sounds like the mechanism is much better understood.
The Nature article actually mentions the drug in question - camostat mesylate - as one of the TMPRSS2 inhibitors under investigation. (And given how often "this should work, for sure!" drug trials fail to pan out, I'm not sure that "this works in theory, here's why" is that good of an indicator)
I grew up on construction sites -- my dad was a general contractor. After publishing research in quantum information theory and robotics, I decided to get back to the family business by founding a company to modernize construction. Happy to answer any question around construction, running a hardware startup, or anything else!
Across every industry I do or have worked around, there's an abundance of mediocre work done to save time. Whether it's saving time for skilled workers to get more work, or helping elevate mediocre jobs to exceptional jobs, this kind of innovation is crucial!
I want to write a book, and work on 3 medium to large scale software projects (not all at once, of course). 'A couple hours in the evenings' hasn't proven enough time to focus on this. In fact, getting up at 3 AM and working on these before work has also not proven to be sustainable.
I don't see a button for it (on mobile currently, and will check thoroughly at my computer) -- is there a button to add a node?
Another feature I've always craved for code diagramming is "collapse downstream nodes" -- though it might be outside of your scope (and mermaids?).