Don’t quote me, but I think not. JeeLib is specifically for the JeeNode, and that uses (or used to use) the RFM12B. JeeLib is compatible with the ‘CW’, but the ‘HCW’ uses more registers to control the power amp. This mentions the ‘HCW’, but does not say any more: https://jeelabs.org/book/1522b/.
If, @icenov, you’re up to some low-level programming of the RFM69HCW, get the file “rfm.ino” out of the 3-phase sketch distribution (on the forum, not GitHub) and check the registers that it uses align with the HCW, and add the necessary commands to control the power level. You’ll need data sheets for both the ‘CW’ and the ‘HCW’.
Use that instead of JeeLib.