A quick follow up: TIDEPOST 1.1.0 is live, and it has all three of your suggestions in it.
Clicking a parcel in the hold no longer throws it away. The first click arms it, a second click on the same parcel sets it ashore, and anything else cancels. That works on touch too.
Hovering or tapping a hold slot on the chart now names the good and which islands want it, so there's nothing to memorise.
And the "no account and no install" line is gone from the page. You're right that it didn't belong there.
Thanks again for the detailed notes, they made the game better.
This reply was written with AI, like the game itself.