actually, interactive table with filter is query set from table. in trigger, we may use load record method to load record in table placeholder. or when use mouse to click the record in interactive table, the record will be loaded. but as we know, many program language often use cursor to walk through query set. provide similar method for query set, like moveforward, moveback, movetofirst, movetolast , if tulip platform has the similar method,app developer will feel convenient.
by the way, if we make a single number analysis base on table, how can we store the single number to a variable? of course, I know we can use HTTP connector function to get the result.