Within the old designer, you could add a field to SharePoint - and then use within the form. The new responsive designer doesn't have this.

Workaround is to save/close - and go to the List Settings - add the field, then go back to edit the form. Would be nice to add a field "in the designer" - like with the older/previous forms designer.

According to the FAQ it's a 'Yes....but'. Without this function calculated values based on a SP lookup control is impossible.

Use List and Library GUID to lock onto the resource instead of display name or URL. Any changes to the display name break the form (and workflows) and should instead work similar to Flow where it locks onto objects with GUID.

Allow the use of Nintex Xtensions in Forms

When dragging/dropping fields from SharePoint (Related List Columns) - these are ALPHA listed.

But within the field itself - the 'connect to field' list is NOT alphabetic.
Within each of the types of sections - it would be handy, when trying to find a field.

It would be nice to be able to set field values in the preview to test rules that are driven off SharePoint list columns.

There is no way to insert a hyperlink control in a repeating section for responsive forms.

Currently only hard-coded URLs can be added to rich text/labels or controls in Nintex Online. It would be great if Nintex can enable insertion of dynamic URLs

Add the fn-GetQueryString() function to Nintex Forms for O365 so a query string parameter can be used on form load. This would replicate functionality found in Nintex Forms on Prem.

Repeating sections must support Managed Metadata control

Please make all viewable properties in a list, such as "Created by" and "Version", available to place on the form as read only (disabled) connected field controls.

Please also display ruled lines even if there is no data in the People picker control.

1. Please can comparison operators between dateTime controls and list fields be made to work as expected?

2. Please can conversions between dateTime and date and time fields be supported without string manipulation?

Date manipulation functions such as convertToDateTime(date,time), convertToDateTime(date), extractDate(datetTime) and extractTime(dateTime) could achieve this.

See also:

https://nintex.uservoice.com/forums/218293-4-nintex-forms-for-office-365/suggestions/16639207-would-like-to-be-able-to-calculate-date-as-default

https://nintex.uservoice.com/forums/218293-4-nintex-forms-for-office-365/suggestions/10879194-business-days-excluding-public-holidays-and-weeken

Thee is an error in the online help info regarding the expression that can be control whether a field's appearance is enabled or not. The help text states that the expression must resolve to a Yes/No value at runtime. This is NOT true. The expression must resolve to True or False. A simple expression of IsNewMode works as is.

URL to your help doc
https://help.nintex.com/en-US/O365/Default.htm#cshid=3017

Currently Nintex Forms for Office 365 form variables cannot connect to people picker columns. Please add this feature.

Font colours should be changeable if conditions are met.

I'd like the ability to define the height of a multi line of text control to be added.

Currently there are scroll bars quite quickly. Couldn't a functionality added similar to changing the width?

Where a choice control is not bound to a list column (and there are good reasons for that situation so it is not a solution here) the values for that choice control are specified in the control settings as a comma separated list. It appears there is no way to include a comma in a valid value by escaping the character. If there is, please advise, otherwise, please include!