The Advanced tab is used to specify phase factor precision, scaling, rounding, optional output fields, throttle scheme, and optional port options in a similar way to page 2 of the Vivado IDE.
System Generator can optionally shorten the AXI4-Stream signal names on the symbol by removing the m_axis_ or s_axis_ prefixes.
System Generator automatically sets the Input Data Width parameter based on the signal properties of the XN_RE and XN_IM ports.