First photos... cut out.
Party way up
Pulled all the way up
The drapery work table I work on is 60" wide by 144 inches long, fairly standard size. However there have been orders for roman shades wider than 60". I can tell you making a roman shade with part of it hanging off the table and then having to move that roman shade several times more than you would have had it all fit on top of your table is a toot! It adds a lot of time to the process and it also leaves you open for issues.
The right tool for the job
Solution add a extension to the table. Just waiting on the extension brackets that are ordered, then it will work like a drop leaf table. Pop it up and it will lock into place when the extra width is needed. They have releases that will easily release and let it down when you don't need it.