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This value is used to define the number of characters used to specify where the selection should start, as a function of what has been entered in the field before the selection. If this value is N, the selections starts from the first key where the first N characters are greater than or equal to the string entered. Indeed :
- If the value 2 is entered and if the string DEF is entered before opening the selection, the selection window will start the search from the first value of the key greater than or equal to DE (if keys starting with DEA exist, it is these that appear first in the window). If H has been entered, the selection will start with the first key greater than or equal to H.
- If this field has the value 0 and a string UVW is entered before opening the selection, the selection starts at A and is not limited.