The default order in Tettra is by most recently updated, but you can change the default order to alphabetical or custom by editing the category:
A few things to note:
Subcategories will always appear at the top of the list (with the exception of pinned pages)
"Pin to subcategory" is only available for "alphabetical" and "last modified" ordering
You can rearrange the order of pinned objects or custom ordered categories by using the 9-dot drag and drop icon:
Filtering and Sorting
You can filter your pages by name (alphabetically) or by last modified date. Just click "Name" or "Last Modified" above the page/subcategory list.
Once you're finished with the filter view, you can either click "clear sort" or navigate away from the page.
Please Note: Filtering and Sorting are temporary views and are only visible to the individual user. Reordering will maintain the order you select for all viewers of the category.