msb-item-sort-function

msb-item-sort-function is a variable defined in `msb.el'.
Its value is

msb-sort-by-name

• This variable may be risky if used as a file-local variable.

Documentation:
The order of items in a buffer menu.

The default function to call for handling the order of items in a menu
item. This function is called like a sort function. The items look
like (ITEM-NAME . BUFFER).

ITEM-NAME is the name of the item that will appear in the menu.
BUFFER is the buffer, this is not necessarily the current buffer.

Set this to nil or t if you don't want any sorting (faster).

You can customize this variable.