improvement in custom forms: search for fields already set up and move fields up and down

Hello,

as far as I could experience it, when you have a long form, it's quite difficult to find a field already set up (= right-hand side) and it is also quite "difficult" to move a field up or down with the drag and drop logic. It would be good to have a search field and some up and down buttons or a compact view to organize quicker all the fields.

Kind regards

Sébastien