Often circuits are built out of wrapping smaller circuits into one instruction, or out of pulse gates. Right now both of these are shown as a box with a label. Displaying their content by inlining would be a nice option.
The pulse part only makes sense in the matplotlib drawer. The inlined circuit potentially in all drawers (just do a dotted line and label the box, as described in this issue: https://github.com/Qiskit/qiskit-terra/issues/2944).
Often circuits are built out of wrapping smaller circuits into one instruction, or out of pulse gates. Right now both of these are shown as a box with a label. Displaying their content by inlining would be a nice option.
The pulse part only makes sense in the matplotlib drawer. The inlined circuit potentially in all drawers (just do a dotted line and label the box, as described in this issue: https://github.com/Qiskit/qiskit-terra/issues/2944).