Try to help you.
1. Copy part file to Ldraw\parts
2. Copy all subfiles to Ldraw\parts\s
3. Run Mlcad, then file->Scan Parts
4. Press yes to write new data to file
5. Restart MLCad(no obligatory)
6. Then find you part(by name, or by number)
1. Copy part file to Ldraw\parts
2. Copy all subfiles to Ldraw\parts\s
3. Run Mlcad, then file->Scan Parts
4. Press yes to write new data to file
5. Restart MLCad(no obligatory)
6. Then find you part(by name, or by number)