Is it possible only to display rows that have cells that contain the search text?
Yes. There are options to highlight matching cells, just return matching rows, or both.
Is it possible to do free style quick search (e.g. '> 50')
Not currently, but we have plans to add that feature in Q1 of 2018. Each column will have its own quick search bar where you can enter a search of that type as well as the main quick search control.
Can we limit Quick Search to particular columns or column data types?
No, Quick Search works across ALL columns in the Blotter. If you want a more fine-grained search, use Advanced Search.
Does Quick Search include invisible columns?
Yes it does, it looks at all columns in the data source including non-visible ones.
Does Quick Search update in real time as the data changes
No. Quick Search is a one time search that returns the state of the grid at the time you run the search. If you want a live updating result-set, use either Advanced Search of Column Filters.