For quick search measurements we add checkbox that allow hide not used measurements (that equal 0). But it is not all that we can to do. If to add search field user will have way quick seek strings (name, description) in table and also values. Combination of two filters make work with measurements easier.
I think better to add this function in VMeasurement class that will to get string and return true if substring is exist in value, name or description. Also good idea to highlight found sublines (not sure if this possible).
P.S. This ideas not my. It is all my sister. :)