The Idea Submission form can be customized from below given path:
Community Settings >> Workflow >> Idea Submission

Idea Title Length Limit (number of characters, must be between 20 and 128): Defines the number of characters allowed the idea title. The default is 64 characters.
Idea Body Length Limit (number of characters, 0=unlimited): Allows to define an upper limit to the number of characters that an Idea Description box can contain.
Auto-save Idea Form Using HTML5 Local Storage: When ON, it allows caching the Idea subject, description and custom field value till the submit idea button is clicked. If the user logs out without completing the details of Idea Submission form, he can log in and resume from where he left and then click the "Submit" button.
 Idea is Editable by Idea Submitter: When ON, the Idea Submitter is allowed to Edit the idea even after Idea has been submitted. Note: Idea submitter can edit the ideas only if they are in Ideate stage.
 Make Tags Mandatory During Idea Submission: When ON, it's compulsory to tag the ideas.
 Make File Attachment Mandatory During Idea Submission: When ON, the user has to compulsorily attach the file supporting the idea.

Allow a single Idea to have multiple submitters: Enabling this will allow the ideas to be assigned with multiple submitters email address.
Team-Based Submission:
When ON the Teams can be assigned to work collectively on Ideas.
Joining Idea Teams: When ON, other community members, apart from existing team members are also allowed to join the Idea Team without requiring anybody to assign them.
 Administrators May Submit Idea On Behalf Of Another Member: Enabling this would give access to all the administrators of the community to submit Idea on behalf of a member of the community thus allowing the flow of ideas into the community.

Display confirmation popup when submitting ideas/comments: Enabling this setting displays a popup each time you submit a idea or a comment to confirm if you would like to go forward with the submission.

Idea Submission

Comment Submission

Enable Idea Draft Support: Whenever the switch is ON for this setting it allows the community members to Draft an Idea, save it and resume it later by retrieving the draft idea.
The below image shows where you can retrieve your the draft idea

You can also find all the drafts in which a specific campaign is selected under My Ideas>> My Drafts tab.

Further you can also change the display of the ideas into List and Grid View by clicking on the icons to right side of My Ideas tab.

Drafts saved in List view

Drafts saved in Grid view

Allow Idea Report Abuse or Report Duplicate: Enabling this will allow the members of the community to report any idea abuse or duplicate.

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