tab (one) for (something)
To select, assign, or nominate one for some kind of position, role, activity, etc. Many believe they tabbed her for the position because of her connections to the banking world. The boss has tabbed Jack for an assignment in Bermuda.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
tab someone for something
to choose someone for something. The director tabbed Sam for a walk-on part. I wanted her to tab me for a part.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.