Is it possible to have my configured social providers in the signup page ?
I've try playing around with the templates in Themes > Register by copy-pasting code from Themes > Autotorize that seem relevant but I keep getting errors.

I've copied the helpers.head from /authorize who crashes calling @helpers.alternativeLoginsScript

[#ftl/]
[#-- @ftlvariable name="application" type="io.fusionauth.domain.Application" --]
[#-- @ftlvariable name="collectBirthDate" type="boolean" --]
[#-- @ftlvariable name="hideBirthDate" type="boolean" --]
[#-- @ftlvariable name="passwordValidationRules" type="io.fusionauth.domain.PasswordValidationRules" --]
[#-- @ftlvariable name="parentEmailRequired" type="boolean" --]

[#-- @ftlvariable name="client_id" type="java.lang.String" --]
[#-- @ftlvariable name="identityProviders" type="java.util.Map<java.lang.String, java.util.List<io.fusionauth.domain.provider.BaseIdentityProvider<?>>>" --]

[#import "../_helpers.ftl" as helpers/]

[@helpers.html]
[#-- Copied the header from /authorize --]
  [@helpers.head]
    <script src="/js/jstz-min-1.0.6.js"></script>
    <script src="/js/oauth2/Authorize.js?version=${version}"></script>
    [@helpers.alternativeLoginsScript clientId=client_id identityProviders=identityProviders/]
    <script>
      Prime.Document.onReady(function() {
        [#-- This object handles guessing the timezone and filling in the device id of the user --]
        new FusionAuth.OAuth2.Authorize();
        [#--
         To use an in-progress indicator when waiting for an external identity provider such as Google.
           - The panel class will make the default FusionAuth login panel show "in progress". Modify
             this selector if your HTML has been modified, or use your own in progress indicator.
        --]
        var panel = Prime.Document.queryFirst('.panel');
        if (panel !== null) {
          FusionAuth = FusionAuth || {};
          FusionAuth.IdentityProvider = FusionAuth.IdentityProvider || {};
          FusionAuth.IdentityProvider.InProgress = new Prime.Widgets.InProgress(panel);
        }
      });
    </script>
  [/@helpers.head]

and get the following runtime error (printed on the browser):

FreeMarker template error (DEBUG mode; use RETHROW in production!):
When calling macro "alternativeLoginsScript", required parameter "identityProviders" (parameter #2) was specified, but had null/missing value.

----
Tip: If the parameter value expression on the caller side is known to be legally null/missing, you may want to specify a default value for it with the "!" operator, like paramValue!defaultValue.
----

----
FTL stack trace ("~" means nesting-related):
	- Failed at: #macro alternativeLoginsScript client...  [in template "##7f0a976d-2ba4-4d3e-8e93-095477c267fe##/WEB-INF/templates/_helpers.ftl" in macro "alternativeLoginsScript" at line 156, column 1]
	- Reached through: @helpers.alternativeLoginsScript clie...  [in template "##7f0a976d-2ba4-4d3e-8e93-095477c267fe##/WEB-INF/templates/oauth2/register.ftl" at line 18, column 5]
	~ Reached through: #nested  [in template "##7f0a976d-2ba4-4d3e-8e93-095477c267fe##/WEB-INF/templates/_helpers.ftl" in macro "head" at line 110, column 3]
	~ Reached through: @helpers.head  [in template "##7f0a976d-2ba4-4d3e-8e93-095477c267fe##/WEB-INF/templates/oauth2/register.ftl" at line 15, column 3]
	~ Reached through: #nested  [in template "##7f0a976d-2ba4-4d3e-8e93-095477c267fe##/WEB-INF/templates/_helpers.ftl" in macro "html" at line 26, column 3]
	~ Reached through: @helpers.html  [in template "##7f0a976d-2ba4-4d3e-8e93-095477c267fe##/WEB-INF/templates/oauth2/register.ftl" at line 13, column 1]
----

Java stack trace (for programmers):
----
freemarker.core._MiscTemplateException: [... Exception message was already printed; see it above ...]
	at freemarker.core.Macro$Context.sanityCheck(Macro.java:221)
	at freemarker.core.Environment.invoke(Environment.java:774)
	at freemarker.core.UnifiedCall.accept(UnifiedCall.java:83)
	at freemarker.core.Environment.visit(Environment.java:366)
	at freemarker.core.Environment.invokeNestedContent(Environment.java:618)
	at freemarker.core.BodyInstruction.accept(BodyInstruction.java:60)
	at freemarker.core.Environment.visit(Environment.java:366)
	at freemarker.core.Environment.invoke(Environment.java:775)
	at freemarker.core.UnifiedCall.accept(UnifiedCall.java:83)
	at freemarker.core.Environment.visit(Environment.java:366)
	at freemarker.core.Environment.invokeNestedContent(Environment.java:618)
	at freemarker.core.BodyInstruction.accept(BodyInstruction.java:60)
	at freemarker.core.Environment.visit(Environment.java:366)
	at freemarker.core.Environment.invoke(Environment.java:775)
....

What did I miss ?

Thanks !

(I'm running fusionauth 1.16.1.)