I suggest that you not set up your value list this way. Set up a table of records where a text field in each record stores one such block of text. Use a second field to provide a name or summary description of the text.
Set up your value your value list to be a value list of the Name fields instead of the text.
Use the selection of a value in this value list to link your record to one of the records in this table and then you can either display the text or copy it into a matching field.
See this link for a description of these two options: Auto Fill