strUsage+=HelpMessageOpt("-sendfreetransactions",strprintf(_("Send transactions as zero-fee transactions if possible (default: %u)"),DEFAULT_SEND_FREE_TRANSACTIONS));
strUsage+=HelpMessageOpt("-spendzeroconfchange",strprintf(_("Spend unconfirmed change when sending transactions (default: %u)"),DEFAULT_SPEND_ZEROCONF_CHANGE));
strUsage+=HelpMessageOpt("-txconfirmtarget=<n>",strprintf(_("If paytxfee is not set, include enough fee so transactions begin confirmation on average within n blocks (default: %u)"),DEFAULT_TX_CONFIRM_TARGET));
strUsage+=HelpMessageOpt("-maxtxfee=<amt>",strprintf(_("Maximum total fees (in %s) to use in a single wallet transaction; setting this too low may abort large transactions (default: %s)"),
strUsage+=HelpMessageOpt("-minrelaytxfee=<amt>",strprintf(_("Fees (in %s/kB) smaller than this are considered zero fee for relaying, mining and transaction creation (default: %s)"),
strUsage+=HelpMessageOpt("-maxtxfee=<amt>",strprintf(_("Maximum total fees (in %s) to use in a single wallet transaction or raw transaction; setting this too low may abort large transactions (default: %s)"),