In the TFS directory mappings it is not possible to have local folder allocations within the same config group for different machines.
Toad determins the allocation of the local folder from the TFS when creating the control group.
This is then saved within the control Group and this allocation is used for all team coding members.
If one team member on his machine has a different folder structure (that does not match the control group pattern), this team member is not able to use Team coding (check-in and - out).
Toad does not determine the mapping of the local folder (except when creating the control group) from the local workspace.
Waiting for a fix to be released in a future version of Toad for Oracle.