Programming (Incarnational)

[llseeker]

Both..
If "past context", by past here it means "A Point in Time Relatively before the period of entity's last incarnation", then an entity will be 'spawned' to that period of time and from that point on branching it's own timeline, or should I say surfing different timeline.

So NO the entity will not modify the events / history as happened in the timeline of it's last incarnation.
Because he will be incarnating on totally different timeline context.

Please bear in mind that there are many timeline... how many? infinite..

If "future context", the entity can select with help from it's guides.. among those guides is certainly the entity's own higher self.

This is among the reason why I often used the metaphor of 'VR game'.
Choose Spawning Time Period --> Choose Spawning Location --> Choose Avatar --> Spawn

Although you just spawned from Battlefield 1945, when you're spawning to Battlefield 1942 it will not alter the timeline of the last spawned game.
Because it will be a totally different game universe.
It's possible that in Battlefield 1942 you eventually will meet 'your last avatar' that you're spawning into in Battlefield 1945, but that avatar is controlled by 'different unit of consciousness' (a.k.a player) and not by you.

Interesting! Your timeline theory matches what Own K Waters described here (https://www.spiritualdynamics.net/articles/time/). He explained the three dimensions of time as:
1. linear time - wall clock time,  passes at a fixed rate regardless of whatever changes.
2. experiential time  - in daily life, you noticed that time can pass quickly or slowly in your perception. This time will be more important as consciousness density increases.
3. timeline - @jafar has a good explanation above. 

Timeline is constantly changing to suit our consciousness. It happens not only at incarnation moment, but also in daily life. At any moment, there are infinite possibilities, we are in one of them, depending on our choice and consciousness.

I just realized it, it is a consciousness growth moment for me, I must be in a different timeline now. @jafar, thanks for the inspiring answer!