Saving Throw macro help please

I have been working on a macro to combine saving throws based off [advantage | disadvantage] rolls. The problem is iI want to use the results off of 1 roll rather than a roll for each ability mod. 
I have gotten this far, showing the roll results and the individual mod stats, but can't get the mod numbers to add to the roll results:

/w gm &{template:default} {{name=Saving Throws}} {{roll=[[1d20]] | [[1d20]]}} {{Str Save= +[[0 + @{npcd_str_mod}]] | [[0 + @{npcd_str_mod}]]}} {{Dex Save= +[[0+@{npcd_dex_mod}]] | [[0 + @{npcd_dex_mod}]]}} {{Con Save= +[[0+@{npcd_con_mod}]] | [[0 + @{npcd_con_mod}]]}} {{Int Save= +[[0+@{npcd_int_mod}]] | [[0 + @{npcd_int_mod}]]}} {{Wis Save= +[[0+@{npcd_wis_mod}]] | [[0 + @{npcd_wis_mod}]]}} {{Cha Save= +[[0+@{npcd_cha_mod}]] | [[0 + @{npcd_cha_mod}]]}}

Saving Throws

Roll	17 | 18
Str Save	+0 | 0
Dex Save	+0 | 0
Con Save	+1 | 1
Int Save	+1 | 1
Wis Save	+3 | 3
Cha Save	+1 | 1

It seems I am close. Is it even possible?
Thank you. 

Without powercards or API you can't "save" a die roll and use it for multiple calculations.

Try this: 

/w gm &{template:default} {{name=Saving Throws}} {{roll=[[1d20 + [[?{Which ability|Strength, @{npcd_str_mod}|Dexterity, @{npcd_dex_mod}|Constitution, @{npcd_con_mod}|Intelligence, @{npcd_int_mod} + @{intelligence_save_prof}|Wisdom, @{npcd_wis_mod}|Charisma, @{npcd_cha_mod}}]] ]]|[[1d20 + [[?{Which ability|Strength, @{npcd_str_mod}|Dexterity, @{npcd_dex_mod}|Constitution, @{npcd_con_mod}|Intelligence, @{npcd_int_mod} + @{intelligence_save_prof}|Wisdom, @{npcd_wis_mod}|Charisma, @{npcd_cha_mod}}]] ]] }}

Franky H. said:

Try this: 

/w gm &{template:default} {{name=Saving Throws}} {{roll=[[1d20 + [[?{Which ability|Strength, @{npcd_str_mod}|Dexterity, @{npcd_dex_mod}|Constitution, @{npcd_con_mod}|Intelligence, @{npcd_int_mod} + @{intelligence_save_prof}|Wisdom, @{npcd_wis_mod}|Charisma, @{npcd_cha_mod}}]] ]]|[[1d20 + [[?{Which ability|Strength, @{npcd_str_mod}|Dexterity, @{npcd_dex_mod}|Constitution, @{npcd_con_mod}|Intelligence, @{npcd_int_mod} + @{intelligence_save_prof}|Wisdom, @{npcd_wis_mod}|Charisma, @{npcd_cha_mod}}]] ]] }}

On the second Roll Query, you only need ?{Which ability}. Since it's the same name as a prior one, the parameter list is ignored. 

Franky H. said:

Try this: 

/w gm &{template:default} {{name=Saving Throws}} {{roll=[[1d20 + [[?{Which ability|Strength, @{npcd_str_mod}|Dexterity, @{npcd_dex_mod}|Constitution, @{npcd_con_mod}|Intelligence, @{npcd_int_mod} + @{intelligence_save_prof}|Wisdom, @{npcd_wis_mod}|Charisma, @{npcd_cha_mod}}]] ]]|[[1d20 + [[?{Which ability|Strength, @{npcd_str_mod}|Dexterity, @{npcd_dex_mod}|Constitution, @{npcd_con_mod}|Intelligence, @{npcd_int_mod} + @{intelligence_save_prof}|Wisdom, @{npcd_wis_mod}|Charisma, @{npcd_cha_mod}}]] ]] }}

This is Excellent, better than what i expected Thank you.  On this note, can we also display which ability was selected. 

Justin H. said:

On this note, can we also display which ability was selected. 

Try this out:

/w gm &{template:default} {{name=Saving Throw ?{Which ability|
  Strength, [Strength] [[@{npcd_str_mod} + @{strength_save_prof}]] |
  Dexterity, [Dexterity] [[@{npcd_dex_mod} + @{dexterity_save_prof}]] |
  Constitution, [Constitution] [[@{npcd_con_mod} + @{constitution_save_prof}]] |
  Intelligence, [Intelligence] [[@{npcd_int_mod} + @{intelligence_save_prof}]] |
  Wisdom, [Wisdom] [[@{npcd_wis_mod} + @{wisdom_save_prof}]] |
  Charisma, [Charisma] [[@{npcd_cha_mod} + @{charisma_save_prof}]]
}
}} {{roll=[[ 1d20 + ?{Which ability} ]] | [[ 1d20 + ?{Which ability} ]]
}}

Silvyre thank you, hopefully 2 more questions can be answered

1. The number appearing after [Ability} shows white, highlighted in yellow and hard to read. Can we make that more readable?
2. Can a macro be accessed from within a handout? For instance I want to direct the DM to click on the roll table with a clickable link in the handout without having to litter up the 'bar'.

Justin H. said:

2. Can a macro be accessed from within a handout?

Yup, check out: Journal Command Buttons

1. The number appearing after [Ability} shows white, highlighted in yellow and hard to read. Can we make that more readable?

One solution:

/w gm &{template:default} {{name=Saving Throw
``?{Which ability|
  Strength, [Strength] [[@{npcd_str_mod} + @{strength_save_prof}]] |
  Dexterity, [Dexterity] [[@{npcd_dex_mod} + @{dexterity_save_prof}]] |
  Constitution, [Constitution] [[@{npcd_con_mod} + @{constitution_save_prof}]] |
  Intelligence, [Intelligence] [[@{npcd_int_mod} + @{intelligence_save_prof}]] |
  Wisdom, [Wisdom] [[@{npcd_wis_mod} + @{wisdom_save_prof}]] |
  Charisma, [Charisma] [[@{npcd_cha_mod} + @{charisma_save_prof}]]
}``
}} {{roll=[[ 1d20 + ?{Which ability} ]] | [[ 1d20 + ?{Which ability} ]]
}}

Excellent Thank you very much!!
Can you please explain where the color options are coming from in this code?

Justin H. said:

Can you please explain where the color options are coming from in this code?

The code I added is created by Markdown code syntax from Basic Formatting. Does that help?

That does help ty, and thank you for the syntax i was unable to figure out on my  own.

OK i got the Journal command button to work, but for some reason it wont roll as a whisper. Any ideas?
the macro works as a whisper from the 'collection' tab / bar button, but not from the clickable link inside the handout.

/w gm &{template:default} {{name=Random Encounter}}{{=[[1t[Encounter-table]]]}}

Make sure there's no space between the 
 and the /w

TY. Will dbl chk tonite after work