Status of FPGA-SDC Support of --group_config_block

[tornupnegatives]

Our team is making use of build_farbic's --group_config_block feature to create tiles at the top-level of our FPGA fabric. However, we would also like to generate SDC files. Is there any timeline on support of this feature? Currently, OpenFPGA complains:

Thank you for using OpenFPGA!
Error 1: Tile-based modules are not supported yet!
Error 2: Command 'write_pnr_sdc' execution has fatal errors