[Question] is it possible to override parameters on bird.conf?

[rapdodge]

I have a usecase that need to having parameters on bird.conf like this

protocol device { scan time 10; }
protocol direct { ipv4; ipv6; check link yes; }
protocol kernel kernel4 { ipv4 { import all; export where source != RTS_DEVICE; }; }
protocol kernel kernel6 { ipv6 { import all; export where source != RTS_DEVICE; }; }

Is that possible to override it from default pathvector one?

Best regards,