Sigasi Studio is often used in combination with Xilinx Vivado Design Suite and offers many features to improve this workflow:

Configure Vivado

Configuring the Vivado installation path in Sigasi Studio is explained in vivado_1

Using Vivado's XSIM as external compiler

XSIM errors are displayed with markers in the editor and problems view

configure-external-compiler

Launching a simulation with XSIM

launch-simulator Start a simulation by setting a toplevel and clicking the run button

Limitations

The Vivado integration in Sigasi Studio does not support multi-project setups (i.e. project references).