On the space of morphisms between \'etale groupoids

Given two 'etale groupoids $\text{Cal}G$ and $\text{Cal}{G}^{\mathrm{\prime }}$, we consider the set of pointed morphisms from $\text{Cal}G$ to $\text{Cal}{G}^{\mathrm{\prime }}$. Under suitable hypothesis we introduce on this set a structure of Banach manifold which can be considered as the space of objects of an 'etale groupoid whose space of orbits is the space of morphisms from $\text{Cal}G$ to $\text{Cal}{G}^{\mathrm{\prime }}$.