Here are the details I wanted to include in a form:

Overview

Summary: A brief description of the issue including any details that might be helpful for resolving the issue.
IMPORTANT: Please remember, no donor PII

Details

Steps to reproduce: A clear list of steps to reproduce the issue (please double check the steps before submitting, if you're unable to reproduce the issue please investigate further)
Helpful hint: to take a screenshot on Mac use shortcut (Shift + Command + 4)
OR on Windows use (Windows key + Shift + S)
[Add screenshots, logs or zendesk ticket number here]

Actual results:
Current result observed after following the steps to reproduce

Expected results:
Expected result or correct behavior if there were not a bug

Notes:
Any further details can be included here to help triage and resolve an issue

See T276446#7003131

Thanks @Aklapper, and apologies for the delayed reply on this.

It sounds like from that task you commented, it's only possible to get general admin rights to create forms on Phab, and not just for a specific purpose?

Since all I would need is to create this one form, is there maybe a way I can just request someone to copy/paste the above text I added as a comment into a new form and call it fr-bug-form or something along those lines?

Yes, see https://www.mediawiki.org/wiki/Phabricator/Forms

I'm afraid we don't want to hand out admin rights to create a single form, so I'd propose to follow the previous link and provide data needed to set up such a form in that other task?

Oh wait that's above already

Is this supposed to be a Create form and/or an Edit form?

I think ultimately we wanted it to appear in this menu:

Would that be a Create form? Thanks a lot for your help on this Andre! And sorry for all the newb questions

I've just confirmed, it is a Create form @Aklapper

Which fields are wanted? Please see and follow https://www.mediawiki.org/wiki/Phabricator/Help/Forms#Creating_custom_forms

(And as usual Phab's unhelpful UI leaves me highly confused... Should this also be marked as an Edit form or not? Why does https://phabricator.wikimedia.org/transactions/editengine/transactions.editengine.config/edit/101/ show preamble content but https://phabricator.wikimedia.org/transactions/editengine/transactions.editengine.config/view/101/ does not? When "Mark as Create Form", it says "will appear in the application Create menus by default" and I'm not sure what that means.)

@Aklapper I think John is looking for the formatting below to be created in a template like this one: Fundraising Story

But we don't understand your questions about preamble or your last question.

! In T282292#7071026, @jbolorinos-ctr wrote:
Here are the details I wanted to include in a form:

= Overview =

Summary: A brief description of the issue including any details that might be helpful for resolving the issue.
IMPORTANT: Please remember, no donor PII

Details
===================

Steps to reproduce: A clear list of steps to reproduce the issue (please double check the steps before submitting, if you're unable to reproduce the issue please investigate further)
**Helpful hint: to take a screenshot on Mac use shortcut (Shift + Command + 4)

OR on Windows use (Windows key + Shift + S)**

[Add screenshots, logs or zendesk ticket number here]

Actual results:
Current result observed after following the steps to reproduce

Expected results:
Expected result or correct behavior if there were not a bug

Notes:
Any further details can be included here to help triage and resolve an issue

Preamble is what is shown above any fields, see e.g. https://phabricator.wikimedia.org/maniphest/task/edit/form/43/ for stuff on top.

This is explained on https://phabricator.wikimedia.org/maniphest/task/edit/form/17/?projects=Phabricator linked from https://www.mediawiki.org/wiki/Phabricator/Forms (once T311956: "RuntimeException: Array to string conversion" trying to use or edit form 17 got fixed). Fields are any fields and dropdowns exposed in the UI:

Did the last comment help? Is this still wanted?