Blueprint plugin needs to have a button to call another blueprint


We are trying to create a custom blueprint for space. One of the templates needs a button that calls another blueprint.

This is for internal software scrum projects.

Is there a way to have a button that does this in a blueprint xml template.

I found this example for the themplate

<ac:structured-macro ac:name=“create-from-template”>
<ac:parameter ac:name=“blueprintModuleCompleteKey”>com.atlassian.confluence.plugins.confluence-shared-files-plugin:file-list-blueprint</ac:parameter>
<ac:parameter ac:name=“buttonLabel”>Shared files</ac:parameter>
<ac:parameter ac:name=“spaceKey”>
<ri:space ri:space-key=“DOCTHEME”/>
<ac:parameter ac:name=“templateName”>com.atlassian.confluence.plugins.confluence-shared-files-plugin:file-list-blueprint</ac:parameter>

How do us the current space for the ri:space ri:space-key