In CCM a file that is opened from the desktop explorer or to edit on desktop automatically prompted the user to indicate whether he/she wants to edit the file or just read it. Edit will automatically check out the file, preventing others from editing it. On saving the user is then prompted if he wants to check in the file again.
This prevents two users from simultaneously editing the file in a local application (MS Word/MS Excel/MS Powerpoint) which could cause conflicting versions and loss of information. For editing the file in IBM Docs this isn't required as then two editors would see each others actions as they do them but for editing on local this would really help a lot to prevent irritation and rogue versions.
Perhaps with an option for the community owner or administrator to activate this behavior per community or company wide.