Rupanya aba-abanya tertulis dalam naskah.

Here, rupanya means something like apparently, it seems, or it turns out.

It signals that the speaker has just realized something or is drawing a conclusion from what they now know.

So in this sentence, rupanya tells us that the speaker is saying:

• Apparently / It turns out, the cues are written in the script.

It is not the noun rupa (form/appearance) in a literal sense here; rupanya is functioning as a discourse word showing realization or inference.

Aba-aba means signal, cue, command, or instruction to act, depending on context.

Common examples:

• in marching: commands or signals
• in performance: cues
• in general action: a signal to begin

In this sentence, since it says tertulis dalam naskah (written in the script), aba-aba most naturally means something like cues or stage directions/instructions.

Also, even though aba-aba looks reduplicated, it is a fixed dictionary word. You should learn aba-aba as one lexical item, not just as a simple plural of aba.

The ending -nya here most likely marks the noun as definite or already known from context.

So:

• aba-aba = cues / signals
• aba-abanya = the cues / those cues / the cues in question

In natural English, this often does not need to be translated word-for-word, but it adds a sense like:

• the cues
• the instructions
• those cues

Depending on context, -nya can also sometimes mean his/her/its, but here the most natural reading is probably definiteness: the cues.

It can be understood either way depending on context, but in English it will often be translated as plural: cues or instructions.

Important point: Indonesian nouns usually do not have to mark singular vs. plural as clearly as English does. Context decides a lot.

So aba-abanya could mean:

• the cue
• the cues
• the instructions

Because the sentence talks about something written in a script, English often prefers the cues or the instructions.

Tertulis means written, written down, or appearing in writing.

It comes from the root tulis (to write) with the prefix ter-.

In this sentence, tertulis describes a state or condition:

• the cues are written
• the cues are written down
• the cues appear in the script

So tertulis is not focusing on who wrote them, but on the fact that they exist in written form.

This is a very common learner question.

tertulis

Focuses on the state/result:

• it is written
• it appears in writing
• it is recorded in written form

ditulis

Focuses more on the action of being written by someone:

• it was written
• it is written by someone

Compare:

• Namanya tertulis di daftar.
  = His/her name is written on the list.
  Focus: the name appears there in writing.

• Namanya ditulis oleh panitia.
  = His/her name was written by the committee.
  Focus: the committee performed the writing.

In your sentence, tertulis is used because the important idea is that the cues are already present in written form in the script.

Indonesian often does not use a copula like is/are in sentences where English would.

So:

• aba-abanya tertulis dalam naskah literally looks like:
• the cues written in the script

But in natural English, it means:

• the cues are written in the script

This is completely normal Indonesian grammar. The predicate can be an adjective, noun, or stative verb without needing a separate word for is/are.

Dalam naskah means in the script, in the manuscript, or in the text, depending on context.

• dalam = in / inside
• naskah = script, manuscript, written text, draft

If this is about drama, film, or performance, naskah is very naturally script.
If it is about a written document more generally, it could be manuscript or text.

So here, dalam naskah most likely means:

• in the script

The structure is:

• Rupanya = sentence adverb / comment word
• aba-abanya = subject/topic noun phrase
• tertulis = predicate
• dalam naskah = prepositional phrase giving location

So the pattern is roughly:

Apparently + the cues + are written + in the script

This is a very normal Indonesian order.

Yes, that is possible, but it changes the feel a little.

aba-abanya

Sounds more definite:

• the cues
• those cues
• the cues already being discussed

aba-aba

Sounds more general or less anchored to prior context:

• cues
• signals
• instructions in a broader sense

So aba-abanya is more natural if the speaker is referring to specific cues already known in the conversation or situation.

Rupanya is common and natural in both speech and writing, but it can sound slightly more thoughtful or narrative than very casual alternatives.

Depending on tone, it can be similar to:

• apparently
• it seems
• turns out

In very casual speech, people might also use expressions like:

• ternyata
• oh, jadi...

But rupanya is perfectly normal and not unusually formal.

They are often similar, and in many contexts both can be translated as apparently or it turns out.

A rough distinction:

• ternyata often sounds a bit more like a clear discovery or confirmed fact:
  it turned out that...
• rupanya can feel a bit more like realization, impression, or inference:
  apparently / it seems / so that's how it is

In many sentences, they can overlap.
For this sentence, both could work:

• Rupanya aba-abanya tertulis dalam naskah.
• Ternyata aba-abanya tertulis dalam naskah.

But rupanya may sound slightly softer or more observational.

Some natural translations are:

• Apparently, the cues are written in the script.
• It turns out the cues are written in the script.
• Apparently, the instructions are written in the script.

If the context is theater or performance, cues is probably best.
If the context is more general, instructions or signals may fit better.