I think 100% of bots "know" what you know and what you tell them to do. So if you know how and when to short I might be interested as well.
Gunbot is coded to trade in bullish, bearish and sideway trends. In the picture below you can see Gunbot performing Reversal Trading during a downtrend to accumulate quote rather than base


About margin trading, instead, you can use short/long with TradingView plugin, building your own strategy and having Gunbot to execute it.
Hope it helped.
Gun