StringList Editor
From RadPHP XE2 Documentation
The"String List Editor" provides an easy way to list the strings that are going to be displayed in a component such as a "Memo", "RadioGroup", or "Query".
To open the "String List Editor" add a component to the form that displays a string list. Select the component and click the ellipsis button on the "Items" or "Lines" property for the component in the "Object Inspector".
Type the list of strings in the edit box in the"String List Editor". Press Enter to add new string line.
StringLists are, in RPCL, array properties, where each line of code is an element in the array, for example:
array
(
0=>"First line",
1=>"Second line",
....
)