Alignment between two containers

[JordanSussman]

Hello! I'm trying to get the region a and region b containers within the following code to align at the same level:

region a: Primary Region {
  vhub: VWAN HUB {
    firewall: Azure Firewall {
      shape: image
      icon: https://icons.terrastruct.com/azure%2FNetworking%20Service%20Color%2FAzure%20Firewall.svg
    }
  }

  special_vnet: Special VNET {
    VNF1
    VNF2
  }

  p_group: primary group {
    mgmt_vnet: MGMT VNET {
      shape: image
      icon: https://icons.terrastruct.com/azure%2FNetworking%20Service%20Color%2FVirtual%20Networks.svg
    }
    prod_vnet: Prod VNET {
      shape: image
      icon: https://icons.terrastruct.com/azure%2FNetworking%20Service%20Color%2FVirtual%20Networks.svg
    }
  }

  s_group: secondary group {
    mgmt_vnet: MGMT VNET {
      shape: image
      icon: https://icons.terrastruct.com/azure%2FNetworking%20Service%20Color%2FVirtual%20Networks.svg
    }
    prod_vnet: Prod VNET {
      shape: image
      icon: https://icons.terrastruct.com/azure%2FNetworking%20Service%20Color%2FVirtual%20Networks.svg
    }
  }

  vhub <-> p_group
  vhub <-> s_group
  vhub <-> special_vnet.VNF1: BGP peer
  vhub <-> special_vnet.VNF2: BGP peer
}

region b: DR Region {
  vhub: VWAN HUB {
    firewall: Azure Firewall {
      shape: image
      icon: https://icons.terrastruct.com/azure%2FNetworking%20Service%20Color%2FAzure%20Firewall.svg
    }
  }

  special_vnet: Special VNET {
    VNF1
    VNF2
  }

  p_group: Primary group {
    mgmt_vnet: MGMT VNET {
      shape: image
      icon: https://icons.terrastruct.com/azure%2FNetworking%20Service%20Color%2FVirtual%20Networks.svg
    }
    prod_vnet: Prod VNET {
      shape: image
      icon: https://icons.terrastruct.com/azure%2FNetworking%20Service%20Color%2FVirtual%20Networks.svg
    }
  }

  s_group: Secondary group {
    mgmt_vnet: MGMT VNET {
      shape: image
      icon: https://icons.terrastruct.com/azure%2FNetworking%20Service%20Color%2FVirtual%20Networks.svg
    }
    prod_vnet: Prod VNET {
      shape: image
      icon: https://icons.terrastruct.com/azure%2FNetworking%20Service%20Color%2FVirtual%20Networks.svg
    }
  }

  vhub <-> p_group
  vhub <-> s_group
  vhub <-> special_vnet.VNF1: BGP peer
  vhub <-> special_vnet.VNF2: BGP peer
}

region a.vhub.firewall <-> region b.vhub.firewall

The aforementioned code results in the two region containers being slightly askew with either the layout of elk or dagre, see the following screenshot for an example

Is it possible to force that the region a and region b containers are at the same level? I would ideally have the region b container to the immediate right of region a.

[ralphtq]

Is the solution simply to add "direction: right" at the start of the code?

Or will you need to use grids?

[CanRau]

If I understood the question correctly, this wouldn't get the desired result I think?

https://play.d2lang.com/?l=&script=7JRNT7NAEMfvfIq5cHwoD8eNMWlV6qWEtBWPzRZG2AjsZnahUdPvboDF0MR4sonRHkiY_87bDswvE4SpEbJmQCIvjOMQ5kLWwBnEJCpOL7AelDcHoC2aPYPkcR7B_cOilwCeBOGBlyWD-WtDCKG17TGALrhCBqLiOVpJpF3Jwhil2WzWWdozSMS1oSY1XiqrGe-yuUEYoTlIehZ17gb-BqkVKbqBfyNLSW4Qzgc3fyzr6Tbvqxyd7nEAtMJU8HLX1mgYbAYLkuhua1tMovD_-BKMUWqXk2wUA2Xn0Js2osorY_OtlqvtNNm575sIMg0v3cC3jvrkxgCKZGZ7i0lmP6i34WuMc9WYyjq7TPbbJtttJ1z9ux5_3amkP5Ema-F1K8BgsYxBIdJXbsHE7fjBiz2D2_WfR0V8QcVZULG5oOL3oIJ7XYA3sqCPHClyeuS8BwAA__8%3D&layout=elk&sketch=0&

[bo-ku-ra]

the red line becomes only a straight line.
https://play.d2lang.com/?script=7FZda9swFH33rzgU_FjH06MYg3RbupeG0HTZY1HlO0VUtsSVnJKV_Pfh2M4SVvaWMVhebN_jcz849j3IOFtJXF3hNQMM2-pae9fWTZQQGRDT1lHhg9I2bSXKLAOYjPUNlMSCba14i_se6UoAm3X7JLH6Np3jy9ebAQS-W6YX5ZzE9EfLhNkQHwhAXKtAErZWhg6g1b6RWKcUopxMuigWiZhVTNzqVGhfT1RXMRezOaUXz8-2Mbkol8QbqykX5UfvPOdiNu1p5di6iBsz9Nll_XV_i4G0Ve5x01CSWPYRVvPPD4dhV_PZu1-P4jg7PBr2bZAIgzr78JBZmzoNle9u7x5Oy55fg5Xl1CqXi3Igxt9UAAL7aphxwb76B2ccv9SodSTtm-qi9lnV7jYb768_jL_4KRjfBI9WqeiWRuLmdoFAxH8mihPi7sh3niQ-3V8s503LWVws569ZzvJiOf-L5aiiSypGP9lnj250-kritT8yxcT-mSSYql22y34GAAD__w%3D%3D&layout=elk&