missing deriv indices on the API

hello good people,

i have encountered a problem with deriv api/websockets i’m currently using

const allowedMarkets = new Set([‘synthetic_index’, ‘forex’, ‘commodities’, ‘indices’, ‘cryptocurrency’, ‘basket_index’, ‘derived’]);

but indices like hybrid, skewed,DEX, 1HZ150V, 1HZ250V etc. are missing, so how can i get all the deriv indices ?