How can I rearrange the fields/columns showing up in the related tab of a record? How can I add a new custom field ? Can I add a new custom field in Line Item block ? How do I reorder the related tabs in a module? How can I hide a field ? How can I hide a default block ? What does Collapse Block means ? What is header and Key field ? Why can't I make fields inactive [eg: Last Name]? Can I change a field from text field to a Picklist field ? Can I change field length ? What is difference between Picklist field and Multi select combo box field? Why I need to give length when creating new custom field ? What is default Value ? If I setup a default value for a field is it set for all users of my Vtiger account or each user has to set his default value ? How to enable duplicate prevention of records? How can I select a variable time in the Time field? How can I add a co-owner field in a module? Is there a limit on the number of fields I can add in a module? How do I create personal or personally identifying fields? What are personal or personally identifying fields? What are encrypted fields? How do I create encrypted fields? The values of some fields are concealed. Users are not able to see them. Why? How do I provide permission to users to view encrypted field values? Can I disable encryption on a field? How many encrypted fields can I create? What is a picklist?