Similar to the existing Index function, I would love to see a new Contains function to be used in expressions.
It would sit in Built-in Functions > Text, and be something along the following:
Contains(t, search)
Contains function : data type Boolean
Returns a value indicating whether a specified substring occurs within this string. Returns true if the search parameter occurs within this string, or if search is the empty string (""); otherwise, false.
Inputs:
t : mandatory; data type Text
The Text where the search Text can be found.
search: mandatory; data type Text
The Text string to be found.