The DeliPress 1.3.9 Update bring the necessary measures to be GDPR compliant.
About Opt-Ins forms
To be GDPR compliant, you just need to activate the corresponding option in the customization step:
Is it possible to ask several consents in one Opt-In?
For now it’s not possible. DeliPress doesn’t has an option to let you add several checkboxes to ask constents (for example, newsletter + third party commercial offers).
DeliPress doesn’t store user personal datas on your website.