Here’s another technique for when you DON’T want knockback. Align your attack so that the enemy literally has his back to the wall. You will be able to hammer away (especially if you have the salad jammer:)
For your advanced operations (and when there are no handy walls) you can move one of your own toons to block the knockback square. Drones and shield bot and deploy cover, boxes, all can be used to prevent knockback.
Finally, use his own toons against him, as the anvil to your hammer. If your really good you can knockback one toon to block another’s retreat.
Mostly you’d want to master these techniques if you use a lot of melee weapons or shotguns, I guess maybe hsr. Knockback can frequently be a pain with theses weapons, burning energy points to advance after every strike to stay in range. There is a reason beyond damage that the chainsawesome is so awesome, 98 points of damage and NO knockback means the right toon in the right place at the right time can kill even a full health 300 point heavy.
So knock back a cold one your next match and ask, do I really want to knock knock, or should I just come in:)