identification of cumulative Buy and Sell Order

1.What is Cumulatice Buy Order?
Cumulative Buy Order = New Buy Order + Existing SL order( Buy order of existing Sellers)
2.What is Cumulative Sell Order?
3.How to identify the Point of (or) Level of, Placement of Order ?
4.How to choise a Chart for Trade ?
5.What is Free Spacing Momentum?
6.How to Identify the Free Spacing?
Type of Orders
1.Buy order
2.Sell order
3.SL order or Hybrid Order