Do not infer access from a quote
A price visible before or after a primary session does not prove that your account can trade it. An exchange, data feed and derivative provider may follow different schedules. Access can also depend on the instrument, account permissions and order type. Identify the market, time zone and quote source first, then read the provider's current session rules rather than using an old list of symbols from another website.
Prepare for different execution conditions
If extended trading is available elsewhere, check whether orders carry into regular hours and how unfilled or partially filled instructions are treated. Wider spreads and thinner liquidity can change the practical cost of an exit. FYLU has not published an approved extended-session instrument list or live execution rules. Its information site may discuss the topic, but that discussion does not make pre-market or post-market transactions available through the preview.