Ninja invoice

Hello,

My name is Boris, I'am a new user of self hosted invoice ninja.
So far i like it.

I'm stuck adjusting a few little things, I hope you can help me with that.

1.  Is it possible to remove tax from subtotals? https://prnt.sc/10lojak
1.1. But to continue to use it at product fields: https://prnt.sc/10loklt

2. Is it possible to add tax as a number with two decimal places, example: 0,00%
- it is currently shown as a single-decimal number: https://prnt.sc/10loklt
- I added a tax rate as a number with two decimals: https://prnt.sc/10lomq7


3. Every time when I save changes to invoice, the Tax setting will disappear.
- the invoice looks like this before saving the settings: https://prnt.sc/10looxb
- after saving the settings, the invoice looks like this: https://prnt.sc/10lopk4
Does the problem occur because the Tax is 0%?


4. Is it possible to align custom fields in the center: https://prnt.sc/10loqng ?
- I can't find custom field settings here: https://prnt.sc/10lornm


5. Is it possible to add default public notes ?
- Like this option for terms: https://prnt.sc/10lot3h
- If is possible, i can try to make that change in database?


Thank you for amazing software!
Best Regards