Yes, Shrimpy supports the ability to blacklist assets. This can be found by navigating to the Dashboard, selecting an asset (or searching for an asset using the "Search" button), and then scrolling until you see the "Blacklist Asset" field. Adding an asset to the blacklist will prevent Shrimpy from trading the amount that you have input. This amount can then be used for other purposes.
You can learn more about blacklisting assets from our following article:
Crypto Strategy: Accumulation VIA Blacklist