Hey buddy. I see you got a mixed bag of autos&photos.
With the photos you can do whatever you like, LST whatever. With autos, these are dif, as they switch themselves they kinda like to be left alone. Depending on the strains, it'll give you an idea of which way to LST. Indica are smaller and tend to lean on the bushy side were sativa grows up like an Xmas tree. I'd focus heavy on LST on the shorter plants. By starting from the bottom set go 3/4 down the node and tie it down and the top will turn up towards the light and as you go up the nodes make where you strap down the nodes a little less so they turn up before the 1st set and follow up your plant like that. Or not. Its LST, so you really can do what you want.
As for the photos, you want to be vegging them for about 6-8 wks autos will flip around wk 3-5. Autos like more like, so what you can do, is take out the photos after 12hrs and put them in a dark room. And keep your autos in the tent and if you like you can run them on 20hrs and just put your photos back in. Lots of work I know, but to get the best results it's what's gotta be done. As for micro nutrients, they are only trace elements and can be given from the start, depending on the plants ruderails, it'll depend on how much trace elements (micro nutrients) autos have RR as they are the thing that actually flips the autos. Some photos have RR like fast versions. But again they are only micro nutes so it's very very hard to get a tox but very easy to get a deficiency, so id stick with the micro.
Feel free 2 DM me if you need more details as all this is the most basic of things.
Good luck