If you program DESC page with 270/100 and set REDGO as 210/3000, then yes, the FMC will do the trick. However, remember to put any TWC into the DESC FCST page, or all your margins are gone
Also, 210 kias for GS intercept might be a bit excessive, even for a CL - but I'm sure you're aware of this
Enjoy - best regards
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