Yes, it'll open up the wallet. You can set it for auto approve for small amounts, so my basic zap of 21 sats is automatic. I received 50 sats all good. Have fun, it's great to be able to actually share value for good content, can be addictive. 

 I seem to only have options in multiples of 50 (may be down to the software I’m using?), but all good. 

Thank you again!  

 Try to press and hold on the zap button, that should let you enter amounts. Otherwise, experiment. 

 Ah! I got it, I didn’t realise that was a free text field. TY!