Hi, I'll see if I can answer your questions
1. Is this standing up and moving in the chair a phase?
Sounds like she's either not hungry or uncomfortable (any teething for instance which might be putting her off meal times) or that she wants the challenge of a climb. I'd probably set up some climbing activities away from meal times and see it that fulfils her need. I'd probably also be quite firm that she mustn't stand in the chair as it's dangerous so either sit and at or be lifted out and meal time is over. If you lift her down and she comes back a few mins later I would give her another chance to sit for her food but not several as it would then become a game of lifting in and out which isn't what meals are about. Other may have other ideas for you too.
2. When she spits up the food at the beginning of the meal do I offer something else?
Sorry I'm not familiar with her allergies etc. I would serve something she likes along with the less familiar or new foods so she has a choice.
3. Ive been doing sort of BLW, cooking the same what we are having with out salt. She`ll be 1 before Christmas, can I start adding a bit to her food? Or should I just stop cooking separately and give her from our food?
I wouldn't start adding salt to any of her food which you cook. Rather than adding salt to her food you might find her intake of foods with some salt in increases as she gets bigger and her appetite increase (and as she drops milk). For instance if she has crackers they usually have salt, any processed foods if you use those, cheese, olives, bread etc. The increase in her salt allowance is small and I'd personally use it up in other foods. for instance my DS like canned tuna and mackerel which I always had to be careful of how much he had and not serve up too often but I could be a bit more relaxed the older he got.
WRT the meals you cook for the family, if really depends how much salt you add (or other salty ingredients such as soy sauce, stock cubes, fish sauce etc), she's probably fine to have some of what you are cooking if the salt isn't too high. Just take into account how much salt she is getting from her various meals and snacks.
http://www.nhs.uk/chq/Pages/824.aspx?CategoryID=514. What to offer for snack? Until now I`ve been giving her only fruit.
Snacks can be any kind of food you want them to be really, so long as they are healthy. A couple of small crackers, a pancake, a piece of chapati or toast, a snack bowl of sweetcorn or peas, batons of sweet pepper, a cube of cheese, a sugar free oat flap jack or mini muffin... the list is endless. I'd probably decide what snacks to give based on ease for taking out and about if needed, and balancing up her food groups if needed. Toddlers often need lots of carbs servings through the day so a bread stick can be a simple snack.
5. Right now dinner is at 5/5.30. I want to drop her df. Should I move dinner time latter?
I wouldn't. Many LOs need to eat early. They have a tendency to lose their appetite if dinner comes too late. If you are concerned she may be hungry at BT or in the night (1yos rarely wake from hunger - if you wean the DF over a few days she'll catch on that she's to take more calories in during the day instead) I would instead offer a supper after dinner. Supper can be a small solids snack and a drink of milk (whatever sort you are happy for her to have. Full fat cows milk is fine from 1yo so long as there is no allergy) or water given between dinner time and BT. Perhaps an hour or so before BT and continue to offer the BT milk if that's what she usually has. I didn't introduce a supper until I dropped the BT milk.
hope this helps