Fetching Dynamic Parameters which are not part of EssentialsListComponentInfo

Hi All,

I have created a dynamiccomponent with the name Product List and added a new parameter called Theme (of type dropdown). But I am unable to fetch this parameter into FTL.

hst:componentclassname: org.onehippo.cms7.essentials.components.EssentialsListComponent

Is it possible to fetch new dynamic parameters which are not part of essentials list info?