Hey there Dudley! Glad to see a new poster
7Seas earlier in the year used to have a bulk buy and it loads right onto your rod feature. However this was counter intuitive to the usual buy a bucket and load feature and it caused 7Seas Sass a ton of work. People wouldn't read the directions, they'd forget to wear they're rods and other problems. Even after Seven added in an extra popup window it caused problems so it was removed.
Now, with that being said, you
can also
wear your bait bucket in your hand ( i believe it goes to the left hand but I can't remember offhand for sure ) and you click on the bucket and it will load onto your rod just as if you had spawned it on the ground. The bucket will then get hovertext that lets you know it's been used as it won't autodelete itself due to you're wearing it as an attachment.
The above will prevent your needing to pop off to a sandbox to load bait.
Hope that helped!