Please do as follows. 1First of all we customize the captions style as need. To view set options for your equation click the drop-down arrow in the equation field.
How to Position a Math Equation in a document in Word 2016.
How to Set Options for Equations in Word. If you know the name of a symbol simply type followed by the symbol name. On the Insert tab in the Text group click Object. To design a custom table of equations layout select From template and click the Modify button to create your own style.