S6 active questions [user upgrade from s4]

Question

I recently upgrade from a samsung galaxy s4 that I had for 2 years and was on the most recent OS 5.01 to the s6 active. wondering how i can get back some of these familiar features from my s6 that I have had troubling changing on my s6 active. any help would be greatly appreciated!
1. why can't I scroll left the home screen page? I can keep going right but I cant go left from the initial home page screen. drives me crazy and is very inconvenient. I could always scroll left on my s4...any way to change this setting?
2. how do I disable the volume rocker in the messaging app from enlarging or making the font on the screen smaller?
3. how do I disable my google account search and browsing history from my computer signed in on that account from appearing on google chrome mobile? I want to differentiate the two while still obviously being connected to my gmail account on my phone for mobile email.
4. in the email app..is there a way to select an email by pressing and holding it and then hitting one button to mark it as unread? i remember this function being availabele on the s4 but now it appears you need to make the extra step and select more and then click mark as unread?
5.in email app is there any way to stagger emails so they are seperated by date with a space between days? this was in s4 now all emails are consolidated as one in s6 active and not staggered by day?
6. how how I set up voicemail without the visual voicemail it prompts me to do? it looks like visual voicemail is my only option and when I select to set it up it prompts me for an exiitng password that I do not know....how do i reset the password?????
7. what is the waterproof like? is it only waterproof up to a certain level of feet of water and for what amount of time? how big of drops can it sustain? and is the waterproof compromised in saltwater from ocean or chlorine pool water? 
10. how do I edit touch screen sensitivity?
   11. if I put a zagg glass screen protector on the phone how does that work with the rest of the phone being waterproof?  12. when I charge the phone why does it say fast charging? is there another mode other than, "fast charging" and can it be edited? Or is that the only mode? 

Answer 1

Thank you for reaching out to the AT&T Community for help; I would be happy to assist you! Let’s go over these one by one!
1. why can't I scroll left the home screen page? I can keep going right but I cant go left from the initial home page screen. drives me crazy and is very inconvenient. I could always scroll left on my s4...any way to change this setting?
From the Home Screen: Press your finger on the background until your phone allows you to customize your phone’s layout. You will notice that each screen has a house icon at the top; tap the house icon on the screen you would like to designate as the “Home Screen”
2. how do I disable the volume rocker in the messaging app from enlarging or making the font on the screen smaller?
The Volume Rocker is standard on the S6 and S6 Active, the setting cannot be changed.
3. how do I disable my google account search and browsing history from my computer signed in on that account from appearing on google chrome mobile? I want to differentiate the two while still obviously being connected to my gmail account on my phone for mobile email.
From your Homescreen, go to your apps:
Google Settings> Personal info & privacy>Activity controls> Web & App Activity
uncheck the box next to Include history from Chrome…
4. in the email app..is there a way to select an email by pressing and holding it and then hitting one button to mark it as unread? i remember this function being availabele on the s4 but now it appears you need to make the extra step and select more and then click mark as unread?
Tap the box next to your unread e-mail, tap More, and tap Mark as read
5.email app is there any way to stagger emails so they are seperated by date with a space between days? this was in s4 now all emails are consolidated as one in s6 active and not staggered by day?
In the e-mail app: Tap More> Settings> View as and select Conversation
You can also do this: Tap More> Sort by and choose how to filter your e-mails.
6. how how I set up voicemail without the visual voicemail it prompts me to do? it looks like visual voicemail is my only option and when I select to set it up it prompts me for an exiitng password that I do not know....how do i reset the password?????
From your phone: Open the phone app and get to your dial pad. Dial 1 to call into your basic voicemail.
From the dial pad, if you tap on the voicemail icon, those settings are specifically for Visual Voicemail. You can always reset your voicemail password from your myAT&T account online or the myAT&T app!
7. what is the waterproof like? is it only waterproof up to a certain level of feet of water and for what amount of time? how big of drops can it sustain? and is the waterproof compromised in saltwater from ocean or chlorine pool water? 
“This device passed military specification (MIL-STD-810G) testing against a subset of 20 specific environmental conditions, including temperature, dust and sand, shock/vibration, and low pressure/high altitude. Device may not perform as shown in all extreme conditions. Water-resistant and dustproof based on IP68 rating, which tests submersion up to 1.5 meters for up to 30 minutes.” Provided by Samsung’s website.
how do I edit touch screen sensitivity? 
The S6 Active has rugged hardware keys in lieu of the setting to increase or decrease the touchscreen’s sensitivity.
if I put a zagg glass screen protector on the phone how does that work with the rest of the phone being waterproof? 
The Zagg Invisible Shield Glass for the S6 Active does not affect the water resistance of the phone.  The Glass simply helps prevent screen damage!
When I charge the phone why does it say fast charging? is there another mode other than, "fast charging" and can it be edited? Or is that the only mode? 
Adaptive Fast Charge is a newer technology for charging your smartphone.  This allows your phone to charge much quicker than a standard charger allows.  If you do not wish to use Adaptive Fast Charge you can use an older Samsung Wall Adapter that does not support Fast Charging.
Thanks!