[UI proposal] Overhaul "send coins" #1361

I'd like to have a consistent display of recipient (or, subtransaction) objects. Quick mockup:

The "send coins" page would have one form with an "add" button. Adding a subtransaction adds it to an entry field, as shown in the image above. Clicking the × on the entry will make it disappear (we may keep a "clear all" button as well). The entry field can contain multiple recipients, and "send" will send all of them.

(special transactions can eventually be built in a similar way, and need their own distinct visual format)

These objects should be drag-and-droppable, the external representation will be a "bitcoin:" URL.

"receive coins" (or the QR-code window) could be adapted to generate the objects, which the user can drag/drop or copy/paste into emails or sites.

I'm very much in support of an interface that lets people get to sendmany.

The label use of labels there sounds good too. I'm not a big fan of the 'grid' layout, though your boxes with Xs look nice to me, simply because I think it's harder to scan (e.g. to see all the values) and would leave less horizontal room for larger labels, URLs, and addresses... and I suspect a more tabular view would be more functional, if not as attractive.

Sendmany has already been possible for a long time, simply by adding multiple recipients. The only thing that would be new is the layout, but if it's not practical I'll close this again...

I'm not entirely sure what you mean by "grid" layout though. I kept the entries small on purpose, to make it easier to scan, like the recipient list in an email program such as outlook. This also makes it easier for users to see them as objects, instead of long, annoying to handle strings. Larger labels and addresses would not be an essential problem, they'd just make the boxes larger...