Multi-Valued Numeric and Measurement
Cells
Sometimes a measurement field or numeric attribute allows you to enter multiple numeric values, with or without associated units of measure:
Multi-valued numeric cells
For a multi-valued measurement field or numeric attribute without an associated physical dimension, the cell in the Record Detail tab is a custom drop-down control that contains a grid with a single column of numeric values (figure below).

Multi-valued measurement cells
For a multi-valued measurement field or numeric attribute with an associated physical dimension, the cell in the Record Detail tab is a custom drop-down control that contains a two-column grid with a row for each measurement value (figure below).

In either case, you can enter, edit, and reorder values as follows:
Add numeric value
To add a numeric value, type the numeric value in the first empty row and press Return, or press Tab to enter the value and move to the next empty row.
Add measurement value
To add a measurement value, type the numeric value in the left part of the first empty row, press Tab, select a unit of measure from the drop down, and press Tab to move to the next empty row.
Delete value
To delete a value, move the thick bordered highlight to the row containing the value you want to delete and press Del.
Reorder values
To reorder the numeric values, press Ctrl + Up and Ctrl + Down to move the current row up and down.

Multiple values are separated in the cell by semi-colons.