This feature is only available with Floworks Professional license, not with Standard.
If you bought FW with a Standard lic and you didn't know that, probably your reseller can help you shift the license.
If you use at home a cracked version of FW, ensure that the lic file doesn't contain both the lines for feature Floworks Pro and Floworks Std: they are not additive, so simply cancel from the lic file the "Floworks Standard" block. Using unofficially licensed programs is on your own to decide, in most countries it's illegal, so I give you this trick "as is"...