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OptionValue can be set to one of the following valid options:
Single S The user can select only one item at a time
| Value | Abbr. | Description |
|---|---|---|
| None | N | The user cannot select any items |
| Single | S | The user can select only one item at a time. |
| Multi | M | The user can select multiple items using the Shift and Control keys |
| Toggle | T | The user can toggle selection on and off by clicking on items or by pressing the Spacebar |
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