This is a more flexible setting for advanced users, where the value for each order is set manually. It is suitable for realization of unique strategies.

Add an Order – use this button to place new orders in the grid and adjust their number.
Indent – sets the distance in percent from the current price, where orders will be placed.
Volume – sets the percentage of the deposit that will be used in the order.
The next trading mode option is “Signal”:
https://help.veles.finance/en/trading-mode-signal/
Full list of bot settings you can find in this article:
https://help.veles.finance/en/how-to-create-and-edit-a-bot-full-list-of-bot-settings/