Per display. The maximum is bounded by aspect ratio and minimum cell size.
Columns
7
Per display. Same caveat as Rows.
Applications
Lists every application with a remembered position, with a thumbnail of its region on the grid. New windows from these applications are moved to their remembered position; the first entry that matches wins. See Remember where windows belong.
Control
Default
Notes
Automatic (per application)
On
Automatically move new windows from this application to their remembered position. Off: the position is only used by the recall shortcuts.
Forget application (per application)
—
Removes the entry and its remembered position.
Add application
—
Opens a dialog listing open windows; picking one remembers its application and current position.
Only windows like this one
Off
In the Add application dialog. Narrows the match to windows of the same type as the one picked.
Shortcuts
Setting
Default
Notes
Resize
Win + Alt + Space
Opens the resize overlay over the focused window.
Settings
Unset
Opens the Settings window.
Recall window
Unset
Moves the active window back to its remembered position.
Recall all windows
Unset
Moves every window with a remembered position back into place.
Fit to grid
Unset
Snaps the active window to the closest grid cells.
Where settings are stored
Settings live in a JSON file at:
%AppData%MaxTosettings.json
Don't hand-edit it The format is internal and may change between releases. Configure MaxTo through the Settings UI; that's the only supported path.