The Job properties are only going to show one Material - When using the FMX + app and using the Event Attribute - selecting Material - you can only select one supply. This is the information that will come with the completed job in the Job Properties. However, since you are using Field IQ - after reading in the completed job - what do you see for the rate attributes for the Map/Layer displayed?
You can manually add the additional Inputs into the Job Properties, by selecting the Add Menu and select Input. Open Supplies and correct supply type. Highlight the needed supply name and OK. This will be added to the list within the job properties, repeat for as many supplies needed, where you can then enter the correct rate or total amount of product used for the field. Click OK when finished