Safepal
Go to Safepal offcial website, check their FAQ or contact their customer support. Ask them how to do coin control for bitcoin with the wallet. If you do Google search you will be able to find many articles available online about anything on the internet. Use those resources to learn coin control.
Your keyword is Coin Control. How to do it with Electrum is nicely shown by bitmover already.
From the look of things, Safepal is a close source wallet although they didn't state it in the site but from the articles I read and my own understanding, it is a custodian wallet. So it is not even advisable to use it. Look at the question the op is asking which can be done easily with non custodian wallets. As Nwada001 said, if it is an Electrum Wallet, Op just need to clink on the particular transaction and copy the send address and resend back the money to the sender.