Setting up SolisCloud portal integration

I have now added the SolisCloud portal integration to Home assistant and am now displaying the following data from the drop-down choices in the Energy>Battery section.

Solis Daily Energy Discharged
Solis Daily Energy Charged

However, this is not the same as shown on Solis Cloud. The Solis cloud shows the instantaneous power flow to and from the battery and grid.

I cannot see instantaneous power in the drop-down data choices. I can only see cumulative Daily and Total Powers. The instantaneous values must be available as that is what is displayed in SolisCloud, so why are they not in the drop-down lists?

Further reading of the latest Solis API documentation(v2.0) I see that in section 3.4 you can:
" 3.4 Obtain real-time data of a single inverter on a certain day
Interface Name Obtain real-time data of a single inverter on a certain day
Interface Description Corresponding daily chart of SolisCloud platform inverter details.
Request URL https://www.soliscloud.com:13333/v1/api/inverterDay
Interface frequency limit 2 times/sec"

however when I try to set up the Solis integration into Home Assistant with that URL (https://www.soliscloud.com:13333/v1/api/inverterDay) it wont accept my credentials.
i.e. the same credentials which are accepted when I set up the integration using just the basic https://www.soliscloud.com:13333
However this latter set up does not offer the choice of instantaneous power readings. It only offers cumulative daily or monthly figures.

Has anyone else come across this and got a workaround?

Noob questions:

I have integrated my home battery system Solis Inverter from HACS successfully. It shows up in Setting>devices>integrations as 1 device and 57 entities.

Clicking on"entites" shows a list of 57 (which I have all enabled) however, in the energy dashboard “Configure battery system” section the drop down choices only offer 10 choices. Where are all the others? How do I get to them?

Hello
How do i install Solis add on?