LIV- payment block- 3 way match

We are using 3 way matching and I have following questions

1- Can we post invoice document and system can apply auto. payment block- when the invoice is received before Goods receipt? ( GR is checked on PO)

2- Can the blocked documents be posted automatically when blocking reason is cleared e.g. completed GR?

3 - If we must park the document in above case, is there a standard report which shows GR completed on which documents?

Thanks

Raj