Is there Visiting Administrator in academia? I am event manager in our university. I see that academics are very mobile through visiting scholar plans. I wonder if you have every seen mobility of university administrators?

I am very interested to go and voluntarily work in the event office of another university to earn new experiences.

Before contacting some universities to see if they have such possibility, I wanted to hear from people here, if it is a feasible and common idea or ridiculous one.
The term you might be looking for is secondment.

To quote one example university (Macquarie University policy):


  Secondment: an arrangement made with the mutual consent of the
  supervisor and staff member, where a staff member is released under
  specific agreed arrangements to work in another area within the
  University or with another organisation for a specific period of time.
  
  A secondment arrangement may be made in the following circumstances:
  
  
  within the University (internal secondment)
  to an external organisation (external secondment)
  from an external organisation (external secondment)
  


Thus, you may want to search your university for a similar policy.