If you mean with dapp-core.
There is a useSignTransactions (https://github.com/ElrondNetwork/dapp-core/blob/ca4e4493c9f927b28e36afd721278a536854bce0/src/hooks/transactions/useSignTransactions.tsx#L23) which sounds like it does exactly what you would want :)
If you mean with dapp-core. There is a useSignTransactions (https://github.com/ElrondNetwork/dapp-core/blob/ca4e4493c9f927b28e36afd721278a536854bce0/src/hooks/transactions/useSignTransactions.tsx#L23) which sounds like it does exactly what you would want :)