There are a number of different types of Field Select-Boxes, used according to the group of entries available for selection. 
| • | Lookup Combo Box - the most common one, used for ordinary, uncomplicated searches, allowing you to add more values "on-the-fly" | 
| • | Pop-Up Lookup Combo - more search capabilities for larger sets of data, such as Parts, also allowing you to add more values "on-the-fly" | 
| • | Search or Open - allows search for item, or open for review (used for frequently opened items such as Work Orders or Purchase Orders) | 
Note: To completely remove any existing value from a Select Box, and make it empty, do the following. (The only exception is the Simple Lookup Box, where a choice is expected.) 
| 1. | Place the cursor at the end of the entry. | 
| 2. | Use the back-space key through all the characters to the beginning. | 
| 3. | Then use the Delete button. | 
| 4. | Save the record while this field is empty. | 
 
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