When getting Map Data, does it have to be a rectangular boundary?

[RoseZappacosta]

I want to collect data in a specific polygon shape, but it seems I can only drag my mouse and have a rectangular study area.  Does anyone know how to change this?

[ShaneMiles]

Hey Rose Zappacosta‌, 

Can you give a little more context on what specific application you are using to try and achieve this data collection and what you are trying to achieve with it?

Shane

[RoseZappacosta]

Yes, so when I am getting map data for a new scene, I can only capture the extent with a rectangular clip.  I added a screenshot below as an example.  Is it possible to change this shape?  Say I wanted a triangular study area, how can this be done?

[CherylLau]

Currently, as of 2019.1, only rectangular bounds can be specified.