Shareware cloning program that reads genbank feature tables?

[Robert Lloyd]

	The subject line says most of it.  What I would like to know is if a
program is available that  will read a genbank style file and then do
simple DNA manipulations (splicing two DNA fragments together, deleting
sections, inverting a file etc.) while  maintaining the feature tables of
a genbank file ?  Of course writing a text file of the feature table
would help _a lot_.  Several commercial programs read these feature
tables but none seem capable of manipulating and then exporting them.