Pls allow options to customize client portal in such a way that we can use custom value to fetch any custom fields, and pls let the client portal be professional so that one doesnt need to to use courses.

i want to create a client portal so that after signing up for the portal, client swould see what we want them to see, like their contact details, after using custom fields.

and pls let the client portal have its own builder so that we can customise it like a website(section, columns, elements)