Mushroom template card - more info from multiple sensors

I’ve been working on my dash & I had 4 entity cards showing Imported electricity, exported electricity Battery charge & battery discharge.
I’ve replaced those with two mushroom template cards using the primary and secondary info to show the 4 sensors across two cards. it looks much neater but I’d like to be able to show the more info tab for both sensors. Tap for primary, press & hold for secondary.

I tried adding the more-info action to the hold action (see below) but I get a syntax error

Is there any way to get this to work?

type: custom:mushroom-template-card
primary: Grid
secondary: >-
  Import:
  {{states('sensor.solis_daily_energy_imported')}} kw

  Export: {{states('sensor.solis_daily_energy_exported')}} kw
icon: mdi:transmission-tower-import
icon_color: amber
fill_container: false
multiline_secondary: true
tap_action:
  action: more-info
entity: >-
sensor.solis_daily_energy_imported
hold_action:
   action: more-info
entity: >-
sensor.solis_daily_energy_exported
double_tap_action:
  action: none