I wanted to introduce myself to everyone here. My name is Logan Foster and I am one of the Product Owners here at Autodesk working on 3ds Max. This thread was brought to my attention by our support team, so I wanted to give an update on the topic. But before I do, I want to thank everyone who has participated in this thread for your involvement. Engagements like this are important to the future of 3ds Max and continuing to drive it as a key 3D content creation tool. We do read these threads even if we aren’t always able to reply to them beyond the work our support teams provide.
With that said I must be the bearer of bad news to let you know that while we understand that some of you want to see a resolution to the point-to-point (shortest path) selection using SHIFT that have been brought up, this functionality was something that we have marked as deprecated back in 3ds Max 2022.1. This means is that we have no commitments currently to investigate these SHIFT point-to-point selection items that you have brought up here, as the development team and I are currently focused on other modeling related topics. I understand that this isn’t the answer that you want to hear, but that is the situation at this moment in time.
As a reminder for those that missed it, but as of 3ds Max 2022.1 you can perform point-to-point selection along the contiguous vertex, edge, or polygon loop/ring on an Editable Poly object or Edit Poly modifier using CTRL by selecting your first component in the point, then holding CTRL and double clicking to select the last component in the range. And alternatively, you can also deselect using the same method and the ALT key.