custom post types

Great plugin!
Is there a way to extend this functionality to custom post types? The option is present but does not do anything… (works fine with regular posts)
Would all that needs to be changed/added is to lines 66,156: if($post_type == ‘post’)
Will it work if I change it to: if($post_type == ‘post’, ‘custom_pot’)
Thanks!!

https://ww.wp.xz.cn/plugins/post-export/