I've started working with the Twitter Timelines node, and wanted to see if there was a way to use one node with a table creator input node to specify a group of usernames to retrieve tweets on. I didn't see something simple, but just wanted to check! If not, it's a lot of data to concatenate.
it allows you to loop over a table, turning each row into a set of variables. You can override the user field in the Twitter Timeline node via the Flow Variables tab. To finish up the loop you just need a regular Loop End node.
For more information on loops take a look the following example workflows: https://nodepit.com/server/public-server.knime.com:80/06_Control_Structures/04_Loops