Ollie Murphy

Gravity Forms already lets you customize the Submit Button under its Form Settings for each form; you can change the button’s text and you can select whether the button should be an <code><input></code> or an <code><img></code> element. However, you can’t add html as part of the button text and you’re restricted to using either an input or image element for the button. With this plugin you can choose to use a <code><button></code> tag element instead, which also lets you embed HTML inside it. Moreover, this plugin also lets you conveniently change the CSS classes of the submit button.
There are plenty of use cases for adding HTML into the submit button text. For instance, if your button text is multiple words long and you’d like to bold or italicize some of them by wrapping certain words in strong or em tags.
Likewise, there are many reasons to change the button’s default CSS class. For example, GravityForms automatically adds the ‘button’ class, but, if you’re using the Twitter Bootstrap framework, ‘btn’ would actually be more helpful.
Gravity Forms requires at least: 1.9.12.16
Gravity Forms tested up to: 1.9.15.11 
After activating the plugin, please navigate to the form settings of the form that you wish to customize. Scroll down to the ‘form button’ section where, in addition to ‘text’ and ‘image’, you’ll also be given ‘button’ as an input type option. Selecting the ‘button’ option will change the submit button’s markup to a <code><button></code> element. You will also be able to embed html in the ‘HTML Button Text’ field.
In the same ‘form button’ section under form settings, there’s an input called ‘Submit Button CSS Classes’. This is where you can change the CSS classes being currently used by the submit button.
Currently you are only able to customize the submit buttons on a per form basis within the form settings and not globally.
<h4>Please note that Gravity Forms must be installed and activated for the plugin to work.</h4>

Customize Submit Button for Gravity Forms

I'm able to add classes to submit button independently without using the filter. Without PHP notices or bugs so far.



Does exactly what I need

Lets you customize the submit button in Gravity Forms by switching it to a button element and changing its CSS classes

WebHolism

When activated this plugin allows Gravity Forms elements to be split into columns. To implement the columns three new elements (Row Start, Column Break, and Row End) which are introduced into the Gravity Forms administration area in a group labelled as Multiple Columns Fields.
For each form, in its form settings it is possible to enable and disable the plugin’s CSS and JS that are used by the plugin. The CSS file is responsible for the layout of the form, and the JS file is used to remove unwanted spacing generated if using conditional logic to hide form elements. It is advised to keep the CSS enabled at all times, but the JS should only be enabled in the case of hidden elements through the use of conditional logic.
** Note: Plugin no longer supports initial column specification using Sections in versions 2 and before. If updating plugin from a version prior to version 3, the form will need to be recreated with the current design definitions.**
Note: If updating from version 3.0.3 or earlier. If the columns are not displaying as expected, first please visit the Form Settings for each form and check the Enable CSS checkbox.
Support this plugin by purchasing <a href="https://rocketgenius.pxf.io/multicolumns" rel="nofollow ugc">Gravity Forms</a> now, using the affiliate link. No extra cost to you, and a big help towards supporting this plugin.
<h3>Credits</h3>
A big thank you goes to K. Woodberry, T. Kaufenberg, J. Wright, D. Donnelly, A. Sharma, L. Hanbury-Pickett for identifying issues, and assisting in finding solutions to them. 🙂

Multiple Columns for Gravity Forms

Gravity form is good but its lacking lots of functionality for layout creation. This plugin give multi column function to create within form. Doing exactly what it says. Just install and add columns. That's it. One suggestion though, if you can add css box to add css class to column, that will be great. 

Nice Plugin for simple functionality

Introduces new form elements into Gravity Forms which allow for simple column creation.

Customize Submit Button for Gravity Forms vs Multiple Columns for Gravity Forms