We appreciate you using Piktochart for your visuals. :) We have an excellent alternative for grouping your saved visuals. This is a feature to help you quickly find them. We don't have a folder feature at this time, but we're constantly working on improvements for you.
Click on "Search saved visuals" at the top of the dashboard to enter the name or title. When naming visuals you'd liked grouped together, you can create names with the same word, phrase or letter in multiple visuals in order to show all visuals with a title that contains that word, phrase or letter when searched. Let us know anytime you need help with this feature. :)