The flow gates are connectors that allow a block to direct, receive, or pass through a logic flow. These can receive or provide multiple links.
Inflow
This is where the block is connected to the flow. It is shaped like a sideways teardrop. When linked, the teardrop connector is filled. It is placed on the block's left side.
Outflow
This is where the block provides logic outflow. It has the same shape as the Inflow but reverted. It is placed on the right side of the block.
Please see below how the blocks are connected.