Number of items for sale

[AlsoInteresting]

Use case

Buying scarabs, I'd like to know how many are for sale.

For instance with this search: https://www.pathofexile.com/trade/search/Kalandra/RagK09Zt7
The copied whisper is:
@Iceshotbestskill Hi, I would like to buy your Gilded Bestiary Scarab listed for 3 chaos in Kalandra (stash tab "fragmente"; position: left 40, top 1)

I don't know how many I'm buying.

Possible solution(s)

Add the message: All x, x being the number of items for sale.