Additional Control VBA UserFrom MS Office 2013

Option 3 | if The "Additional Control" doesn't currently exist or disable,
To enable "additional Control" on VBA UserForm you can Follow this step

1. Open Excel Application
2. Go to File -> Option -> Trust Center -> Trust Center Setting
3. On ActiveX Setting Select "Enable All Control Without Prompting" and Press OK
   
4. Open your VBA Userfrom 
5. Click right on Toolbox and Select "Additional Control"
6. now your additional Control is already enable (^_^)

Option 1 | Check if "Calendar" ability already exists
Option 2 | The "Monthview" Control doesn't currently exist