The following form elements are available:

• numeric field
• test field
• text area
• text editor 7:10 (should be installed TypoMCE or similar)
• the code editor 7:54 (must be installed Ace)
• Yes / No list 1:54
• listbox (multi-select) 2:30
• custom drop-down list 3:32 4:43
• check box 0:15
• radio options 0:46
• date
• time
• date and time
• date timestamp

For the whole elements list the customization possibility is available.
As an example of a text field customizing, we make it read-only by adding read Only: true

{
    xtype: 'textfield'
    ,fieldLabel: _('ms2_product_mytextfield')
    ,description: _('ms2_product_mytextfield_help')
    ,name: 'mytextfield'
    ,allowBlank:true
    ,anchor: '100%'
    ,readOnly: true
    }

Among other things, you can create your own processors and use them in custom elements.

Note: for all Boolean fields in the database, use the TINYINT type

Important: If you added your fields, and they did not appear for the product, you need to clear the browser cache

Thread in MODX.PRO community.