Creating checkbox option issue in create page

[geogeorgejoseph]

site.yaml

project.yaml

I need to set header.institution's options from site.yaml. I added like this options@: config.site.institution. But in create project page it is not showing options. i am using Grav v1.7.49.5 - Admin v1.10.49.1

[rhukster]

it's data-options@ https://learn.getgrav.org/17/forms/blueprints/advanced-features#using-function-calls-data-at

[geogeorgejoseph]

added like this. But still issue there

Note: This is for my backend page. Not for frontend form