Multi Select Picklist

From LongJump Support Wiki

Multi Select Picklists provide options in a field to make multiple selections from a list of values in a Global Picklist.

In the global picklist, although the labels for the enumerated values may contain commas, the enumerated values may not contain commas.

The orientation can be vertical or horizontal

• When displayed vertically, each label is shown on a separate line
• When displayed horizontally, the labels are shown on the same line, separated by commas

For Multi Select Picklist fields where the labels include commas, vertical orientation is the better choice