It's not, no it can't be done.
You are not asking yourselves, then answering. Why Hitech chose to present capitol ships and their escorts as movable equivalents of airfields with AI flak batteries, in a giant scale world where a CV group can take 12-24 hours to steam from one corner to another if it doesn't meet a bored kiddy with 1000lb bombs. If tanks didn't have spawns they would be useless because of the scale of our world. The destroyer would still travel at the same speed as the destroyers in the task group object to get anywhere slowly.
Where will you go anytime inside of two hours and not get sunk by a bored kiddy with two 1000lb bombs? What will you shoot at on land with a 5inch round that won't get you sunk by a kiddy with 1000lb bombs a few minutes later in response to the base flashing?
All of your emotional we want this so stop standing in our way aside. You have not defined this world as it works and why ships are presented the way they are. Then how this world has to be changed to make a single destroyer nothing more than a bored kiddy target to practice dropping bombs on. Otherwise as all of you always do, you punt in this crunch that Hitech has to make it work and call others haters who asked you to go through this process.
So maybe hundreds of destroyer spawns points all over the map. Then you could have squads grief fields by swamping their waters repeatedly with destroyers like you already do with PTs? Time warp capability, then pick a place on the map with your mouse and appear there in 10 seconds or suddenly run from a bored kiddy with 1000lb bombs.
Or maybe add two additional destroyers to the task force object. They can individually maneuver inside of an extended circle to the line of travel of the task force object, while still tethered to the task force's main course. Either adjunct to an individual taking control of the task force or as two individual player commanders. But, then how do you choose who gets to do that and not have vulgar pissing matches on range like we do over control of the CV when getting bounced from your captain seat? Especially while you are deep in your master plan of maritime genius. With CV task groups a single captain however imperfect is less of a social problem than a single player commander for each ship in the task force in our gigantic world. That old imagery of many arrows together cannot be broken over your knee equivalent to that bored kiddy with 1000lb bombs getting your lone single captained ship.
I know, it's Hitech's problem to make it work, and yours to tell everyone else they are haters for standing in the way of your progress.