Just to add to the above,
to match custom pageviews PV (eventX) with default PageViews PV metric fire your custom event(pageviews) only on trackState calls(if doing via processing rules then Set eventX(pageviews) only when pagename is set ), not on trackAction. This keeps both numbers aligned.

PVs won't increment for trackAction. If you want your custom event(for pageviews) to match default PVs, trigger it only on trackState.