Ok, I see, I need to click Override launch template to enable Instance purchase options and Allocation strategies sections.
I guess something has changed since creating old ASG as I don't recall clicking it before. Also why it disappear when I click edit on old ASG.
Reserved Instance purchase - stuck in payment pendingasked a year ago
Unable to override instance type in ASGAccepted Answerasked 8 months ago
Unable to purchase prepaid Hitsasked 6 months ago
ASG - Instance purchase options and Allocation strategies missingasked 8 days ago
Can not create instance imageasked 2 years ago
Want to purchase savings plan but don't know about which Instance and Volume will be suitable for me.asked 6 months ago
Purchase orders APIasked 3 months ago
Slow down ASG target tracking scale outAccepted Answerasked 2 months ago
Memory and CPU allocation for EC2 on Free Tier.asked 6 months ago
Unable to purchase prepaid HITsasked a year ago