Problem:

How to change validation message of URL field in Toolset forms?

Solution:

You can change the validation message of custom URL field in Toolset User form here:

Edit your user form, in section "Messages", option "Invalid URL message"

Relevant Documentation:

Problem:

The issue here is that the user wanted to paginate their post slider 1 slide at a time while maintaining 5 slides visible.

Solution:

Unfortunately this isn't possible to do based on how the view pagination works. The view works by loading pages of posts and not the individual post itself.

What I mean by this is that if you have 15 posts and you're displaying 5 posts per page, then you will have 3 pages. Each click will load 5 posts rather than the next immediate post.