Noting a couple of issues with transferring title holds in the web client.
1. On the View Holds tab of the bib record, there is a large, very prominent button that says "Transfer All Title" holds. The option to transfer selected holds is buried in the Actions Menu. As was previously reported in https://bugs.launchpad.net/evergreen/+bug/1350377, it is very easy to accidentally select the transfer all option when you are trying to transfer selected holds. I (and, I believe, many others) would rejoice if this option were removed from the web client, but, in lieu of that, it should be moved to a less prominent position.
2. Now that we have a "Mark" button higher in the bib summary area, should we move the option to Mark as a TransferTitle Hold Destination there? It would make this action more consistent with other "mark" actions we perform in the client.
Adding one more point in favor of removing the "Transfer All Title Holds" options altogether from the web client. During the xul discussion, the argument in favor of keeping the option, for those who used it, was that it provided an easy way to transfer the holds, without the additional step of going to the view holds screen.
In the web client, the transfer all holds option is only available on the View Holds interface, so there is no longer an advantage of doing the whole process from the OPAC view screen. If users want to transfer all the holds, they can easily click the select all button from this view and then select the option to transfer selected holds.
I will happily work on the branch to remove this button if we can get a general consensus to do so.