You may contact me for any reason - give feedback, make a suggestion or even express your interest to participate in this project - by email at firstname.lastname@example.org
If you want to report a bug or request a new feature, please open a ticket at Help Desk. There you may provide your name and email address so that I can respond as quickly as possible.
A selection of online video tutorials exist at Tutorials that cover different aspects of Deriscope usage.
It is likely that your question is already answered in Knowledge Base. Please have a look there before you submit a ticket.
Here you can find the articles and essays that I have published on Medium with regard to working with Financial Derivatives in Excel.
A small selection of technical papers is available at Papers for download.