Within Conversation Flow, if a WHEN is added with a number of different cases, it can get a bit annoying to have to keep scrolling left and right each time you want to add a new case (with the "Add Case" button).
Would it be possible to add a new "Add case" option to the dots menu that appears in the top-right of each case element; it currently only includes Delete.
There could be other options available, this is only one example.
The work-around to this is to click the current "Add case" button lots of times so that you can then work through them adding the clause, but sometimes you don't know how many you'll need.
To see the problem for yourself, add a WHEN and then click "Add case" 5 times to get an idea of the amount of left and right scrolling you'll need to do.
Due to recent Flow updates, this feature request is no longer valid because "Add Case" is always visible and very easy to get to.