I have 1 wallet in my node, which has many accounts({ type: pubkeyhash, witness: true }). The balance is splitted among these accounts. When I need to send a bit large amount of BTC, inputs quantity can reach 400-500, with the corresponding
high transaction fee.
How can I merge my inputs into one? Or, maybe, there is another way to decrease fee, as it seems that bcoin hasn't added the PSBT's support yet.