New automation in sequence doesn't keep track of previous slot's height

[jln-]

Currently, new slots are always created with the same default height. This can be annoying when creating slots in sequence. ie:

• Create a slot with an automation
• Resize its height
• Create another following slot in sequence

Expecting result: new slot is created using previous slot's height so it is aligned

Current result: new slot is created with default height so it is misaligned