Open a menu of slice options that can be created from the bus pin/ports. A custom slice option to create any slice/bit combination of your choice and the more common possible combinations of slices are available. For example, using a 32-bit bus with the Custom Slices option allows the creation of any slice/bit combinations (for example., a slice of 10 bits and another slice of 22 bits). To make it convenient to create slices, common, off-the-shelf bus slices are listed in the drop-down menu; for example:
On a components bus pin the slices expands by default.
The directions of the slices (input/out) are indicated by an arrowhead.
On a top-level bus port the slices places in a column below the bus port.