Use Trinket Slot Macro
Name: Holy Light
#showtooltip<br />/use Core of Ripeness<br />/cast Avenging Wrath<br />/cast Holy Light
Once again, the macro is named the move that I want to mainly use, and I wont forget when I give it a quick look during combat.
I'm using '#showtooltip' to show me what I'm using. At first, when my trinket isn't used, it will show me the tooltip for the trinket 'Core of Ripeness', since it can be used. If you want, you can choose which tooltip you want the macro to show. For this example, I want it to always show 'Holy Light', instead of showing 'Avenging Wrath' at all, so, I change the first line from '#showtooltip' to '#show Holy Light'. It would look like this:
#show Holy Light<br />/use Core of Ripeness<br />/cast Avenging Wrath<br />/cast Holy Light
Here is a list of the item slot numbers for your character: Head = 1 Neck = 2 Shoulders = 3 Body = 4 (shirt) Chest = 5 Waist = 6 Legs = 7 Feet = 8 Wrist = 9 Hand = 10 Finger1 = 11 Finger2 = 12 Trinket1 = 13 Trinket2 = 14 Back = 15 Mainhand = 16 Offhand = 17 Tabard = 19. Here is a graphical explaination of your character's item slot numbers. This rotates 5 trinkets (in slots 1-4 of bag 4 and equipment slot 14) through slot 14, and 5 trinkets (in slots 5-8 of bag 4 and equipment slot 13) Through slot 13. The /stopmacro line is there to keep from getting the in combat errors. I just click the macro after every fight and the next two trinkets are equipped.
The second line uses my trinket 'Core of Ripeness'. Now, 'use' has different functions in World of Warcraft.
1. It can use the 'use' function of an item and 2. it can equip an item. This may be good if your trinket is always in that slot. But if you're always switching out trinkets and using them for different fights, then this macro isn't as effective. To make maximum use of this macro you will have to make sure that your 'use' trinket is in the same item slot. This is because all items on your character has a slot number. For example, your Weapons, offhand and mainhand, have the slot numbers of 17 and 16, and your relic, wand, or ranged weapon slot number is 18. For this example, I put my use trinkets in the bottom slot, which is slot number 14. To make this macro work for all the 'use' trinkets I have for the different fights and situations I would write:
#show Holy Light<br />/use 14<br />/cast Avenging Wrath<br />/cast Holy Light
For even more effectiveness, just in case you don't remember which slot your 'use' trinket is in:
#show Holy Light<br />/use 13<br />/use 14<br />/cast Avenging Wrath<br />/cast Holy Light
This will use both slots, but only your usable trinket is usable, so, the macro will use it. If you have two 'use' trinkets, the macro will use whatever is in slot 13 (the top trinket), the other trinket will have a 20 second cool down. If you're spamming this macro then there will be no problem in getting full use of both of the 'use' trinkets.
Use Trinket Slot Macro Clicker
Tip: This is a great way to spam 'use' trinkets to get the maximum effectiveness, especially for healers. For caster damage dealers, this may not be a good macro because you may want to use your trinkets at the most opportune time. We'll go over DPS macros soon!
For your Interface I would recommend using Weakauras and Bigwigs.
Weakauras will give you the opportunity to import a lot of helpful stuff to keep track of your cooldowns, buffs and debuffs.
BigWigs for having a boss mod helping you out to plan our cooldowns ahead of time and be prepared for certain abilities that are about to happen.
Macros
Here are some useful Hunter macros everyone should have:
Trueshot, Trinket & Berserking Macro
If you have a trinket which cooldown lines up perfectly with trueshot, you use both at the same time. This just gives an extra action bar slot for anything you want. In case the trinket is out of cd and trueshot is not, you just press the macro to use the trinket.
Resonation Arrow Macro
This is for any spell that has a target reticle such as traps, flare and binding shot.
Aspect of the Turtle Cancel Aura
You're unable to cast spells while being in Aspect of the Turtle so it might be useful to cancel it sometimes.
Misdirection Mouseover or Focus Macro
Misdirection is an important ability in Dungeons but also in Raids: This macro will cast Misdirection on the target you are currently mousing over. Otherwise, it will cast on your Focus target.
IT'S IMPORTANT FOR BM HUNTERS TO USE THIS MACRO FOR EVERY OFFENSIVE SPELL
The auto-cast system in the game is super slow on pets and you might miss out make sure to use this macro.
Another important topic is the pet attacks, you should macro them into all of your abilities when you're using a pet to guarantee the pet will use them on cooldown and not miss out on damage.
Here is one example for Barbed Shot. It is recommended to macro these into every important ability while using a pet.
Some auras that I find really useful are the buff trackers, such as for Trueshot, Precise Shots, Posthaste. If you are hiding your action bars as I do, Aimed Shot stacks and any cooldown tracker is also really good.
Use Trinket Slot Macro Clicker
Apart from class/spec specific WA you can also track Combat Meditation and Let Go of the Past.
Use Trinket Slot Macro Cheat
Afenar does some really good WA so you can check him out at https://wago.io/p/Afenar or you can find a wide selection of Hunter auras at https://wago.io/shadowlands-weakauras/classes/hunter.