Font Folders
The Font Folders dialog shows a list of folders that have been processed by MainType.
Within the Font Folders dialog click the Add button to add fonts to your MainType font library. Click the Browse button to select a folder that contains (part of) your font collection. If you want to have groups based on the folder structure, check the "Create groups after indexing" box.
You can also drag and drop a single folder from your Windows file explorer onto the main toolbar.
Use the Refresh All button to let MainType look for new and edited fonts in these folders.