What does "maumpisahang" mean?
1. What does "maumpisahang" mean in the following sentence?

Nagmamadali ako na maumpisahang kalasin ang aking makina kaya mabilis kong iginuhit ang drowing na ito.

What is the dictionary form of "maumpisahang" ?

2. What does "e" mean in the following sentence?
Kaya maiisip mo ang pagkagulat ko nang sa pagbubukang-liwayway e gisingin ako ng isang di-pangkaraniwang maliit na tinig.

Question

What does "maumpisahang" mean?
1. What does "maumpisahang" mean in the following sentence?

Nagmamadali ako na maumpisahang kalasin ang aking makina kaya mabilis kong iginuhit ang drowing na ito.

What is the dictionary form of "maumpisahang" ?

2. What does "e" mean in the following sentence?
Kaya maiisip mo ang pagkagulat ko nang sa pagbubukang-liwayway e gisingin ako ng isang di-pangkaraniwang maliit na tinig.

Answer

1. To start -Maumpisahan: from the root word "umpisa" 
[synonym: masimulan/simula]

2. "e" could have been a shortcut to "ay" in this sentence.
But it is used in many different ways 
but the use in the sentence may seem 
"that" [or] "is"

Sample uses of 'e'
1. E bakit? (used as "BUT":      "BUT WHY?")
2. e ewan ko.. (used as "oh":     "Oh, I don't know")
3. Ako'y nagutom kahapon e kumain nmn ako ng marami.  (used as "BUT")
4. Kahit mabuti adhikain nya e masama naman nakapaligid sa kanya (used as "however")
5. Masamang masama ang kanyang pakiramdam e hindi na nga sya makatayo
(used as "THAT":   He has a nasty stomach bug that he couldn't get up")

This is overdue, but I think I still need to answer it for information purposes.
Have a great time!