Starting with Pulse v6.2.1, you can access Arc through Pulse. In the Model Spotlight feature, if you open a process, you will be able to see a link “Open Process Editor” on the top right corner:

Once you click on it, Pulse will open Arc on this process:

To enable these links for processes and rules, you have to go to Pulse Administration > Environments. For each Environment, you need to enter the Arc URL as below:

After clicking the Save button, the links will appear in Model Spotlight.