My friends at work would probably come up with some script to easily generate large amount of needed configurations or convert existing configuration to abit different format.
I dont know if there is any tool for this. To be honest I think there arent really that many tools for ASA in general. Then again I havent really even looked for any.
I personally do it the hard way
Lots of copy/paste and manual writing. Call me mad but I like writing the configurations myself.
Are you converting some configurations? Perhaps changing from a different firewall manufacturer or something? Or what will all these objects hold?
There is a tool that I have never used but remember it being listed on the Cisco pages download section when downloading new software versions. Maybe its something you are looking for
Here is a screencap of the section of the pages as an example (click to enlarge)
Theres a "Checkpoint Security Conversion Tool"
I dont think it requires any service contract with Cisco.
You could try this link for example
Hope this helps
I have been only dealing with Cisco firewalls since I started with networking so I am not very good at giving any tips to help you with easily converting/creating the objects.
Havent really had to move between 2 different firewall vendors while I have worked with firewalls. So I dont know what type of CLI configuration format other vendors have. I have been told that when Cisco moved more heavily to use "object" and "object-group" in the ASA configurations that this was something that was already common with other vendor firewalls. But as I said I havent seen the formats others use so I am not sure what kind of work it would do the conversion.
Also I have not have to convert large amount of configurations with scripts myself. I have usually had someone handle that for me inside our company that regularly does that type of work anyway.