Limit GL Account Access

Is there a way to limit the GL accounts someone can access in E10?

In what context? Journal entries?

No such feature, however, you can write custom Search BAQ for such feature

There is no such feature in Epicor. However, you can achieve this goal by doing form customization and BPMs.
You may restrict the access by relating your controls to site id, as the user’s site id context is available across the whole system.