Simulate a concave multi-element ultrasound array

How can I create a spherically concave multi-element random ultrasound array in the Sim4Life acoustic simulation platform? The template acoustic apertures in the Sim4Life does not include the spherical concave model. How can I customize the element arrangement using X, Y and Z coordinates? Thanks!

The easiest way would be to design it yourself and automate it via python (create spheres and cylinders and use the binary operations to 'subtract' them from one another until you have the geometry you want). Let me know if you need some support with this and I can help.

If I remember correctly the SEFT tutorial python script shows a similar method to create the SEFT (single element curved transducer) transducer from scratch