Steps to show and hide button using javascript Ribbon Bench

 

Ribbon customization show /hide button using javascript

1. Install ribbon bench managed solution
2. Import the ribbon bench managed solution
3. Go setting ->customization->Click on ribbon bench
4. Open solution which should contain entity and javascript logic to show/hide
5. Add new button on the form
6. Add the command on the new button
7. Add enable rule ->custom rule->give websource name and display
8. Add  parameter in enable rule ->Crm parameter->primary control
9. Add the newly added enable rule to command 

Perform action after button click

1. Add action on the command ->select javascript ->add function
2. Add parameter->crm parameter-.>primary control

Display rule:

1. Show/hide button based on field value->add display rule
2. Add value rule->field name->value