I think that’s possible, but with dataviewJS.
I only use simple dataview queries. But I found this in Obsidian discord channel:
```dataviewjs
dv.paragraph(dv.pages()
.exercise.array().reduce((acc, val) => acc + val, 0))
(“exercise” is the name of your placeholder)
The problem: this gives you the total for all “exercise” fields in your vault. You need to restrict your source to a file name or a folder name (or other conditions, like dates). But this depends in how you create your weekly note (or a weekly folder).