Create an administration tool that can create multiple new design records at a time. Watch out for upload timeouts. User can select how many to create. Can be laid out as a table, each row is a new record, in keeping with the spreadsheet theme.
first version committed and seems to work. Fails without error if uploads dir is messed up :( Still need to check upload timeouts
r20257 uses set_time_limit(0) to disable time limits on the upload form
The bulk uploader (and the public upload form) still show a blank page when I upload an image that is 1MB.
Just uploaded a 5MB file using both the public and admin upload form. Both worked. Considering a 5MB png is huge (10,000 px x 3,000px), I don't think we'll see designs larger than this.