Blog archive has too many adverts on it

There are few options to limit insertions:

You can define max insertions for each code block.

You can also define max blocks per page (but this may need additional settings to properly count blocks):
https://adinserter.pro/documentation#insertion

With Filter you can limit/filter multiple insertions of the same block:
https://adinserter.pro/documentation#filter

It would help if you enable remote debugging:
https://www.ads-software.com/support/topic/ad-inserter-support-how-to-ask-for-help/

Thanks Spacetime, I have enabled the remote debugging. I only have one ad block and would be happy if I could limit it to once at the top of each page and post.

For block 1 set Filter to 1 (Button Misc / tab Filter)

Thanks, That worked perfectly. I was finding the interface a bit complex.