How do I update fields in a Word document using activeX in MATLAB?

I used MATLAB to add a new figure to a Word document and would like to update the figures list.

hWord = actxserver('word.application');
hWord.Visible = 1;
hDocs = hWord.documents;
hDoc = hDocs.Add;
hDoc.Activate;
hDoc.fields.update

When I run this script, I get the following error: 

'update' needs one of the following:
   Database Toolbox
   Fuzzy Logic Toolbox
   Instrument Control Toolbox
   Predictive Maintenance Toolbox
   Robotics System Toolbox
   Simulink Control Design
   Simulink Real-Time Statistics and Machine Learning Toolbox
   System Composer

error test (line 11) 
   hDoc.fields.update

How do I update the fields in my Word document?

Answer 1

[MathWorks Support Team]

The “update” function call searches for a MATLAB function of that name, which can be found in the MATLAB Toolboxes listed in the error message. To update the fields within your Word document, use the Microsoft VBA method “Update”: 

hDoc.fields.Update 

Microsoft VBA methods can be identified from MATLAB functions by the capitalization, such as in “hdocs.Add”. Refer to the official Microsoft documentation for information on VBA methods.