your request is well beyond the scope of a community forum. Suffice to say that yes, you can change things to appear differently in the admin/vendor views. But you would need to either override the pages to change language variable names based on context or ask cs-cart to add a hook (or temporarily add one yourself) to the __() function like
fn_set_hook('lang_vars_pre', $var, $params, $lang_code)
that would allow you to change the value of a language variable if a comparable name existed. I.e. for
'customers'
if an complementary name of 'vendor.customers' exists, then you would substitute that value for $var.
This is all just examples, don't rely on the actual values I've referenced. A better (more unique) naming construct would be better.