Hi,
versions are coming and going but this feature has not been added yet.
it's already there (for a long time

) but maybe a bit hidden:
you need to select a 'Standalone' Output Format in the kprotect tool,
then there will be settings to set the size of the swf,
and in the kprotectcl (kprotect command line) tool you can set the size with the "-swfsize" parameter,
best regards,
Klaus