I am trying to create a diagram, a node can push a value to an indexed array dynamically or use a value already pushed by another node or the same node.

• At first, the input should be a select dropdown that has values already pushed and an option called 'add new'.
• If the user selects the option 'add new', a text field must popup to type the new value and a button to push it to the array. (any other way to achieve this also be ok)
• If the user pushes a new value to that array all inputs that use the the array in all nodes must be updated and the new value must be selectable in dropdowns.

Can I know is there a way to get this done in GoJs and a code help much appreciated if it's possible.