I request to add APDOWN mode to ATAS footprint

apdown mode:

apdown is short for "average price down" and is often used to analyze the background of price declines. In this model, the main focus is on the volume and order flow as the price moves downward.

apdown statistical models can help traders identify weaknesses in the market, especially during price corrections or declines, the activity of buy and sell orders, and changes in investor sentiment.

In summary, the BID and ASK models focus on the buying and selling power of real-time order flows, while the apdown model focuses more on the dynamics of order flows during price declines and their potential impact on market trends. Traders using these two modes can obtain market information from different angles to optimize trading decisions.