Add a quickbet button where the user inputs their expected probability, and it calculates and places the appropriate Kelly bet size based on their portfolio.

Let a user filter to markets in which they have positions

Add a tiny graph/sparkline on each row to show how the market has changed recently

Generate RSS feeds for user-specified queries (like https://hnrss.org/newest?points=100)

Add support for arbitraging similar markets/answers, either treating them as summing to 1 or specifying a target relative change percentage.

Make a userscript that overrides Manifold's default search with Isaac's search

Add tooltips that explain how everything works

Add an option to display each answer on a multiple-choice market as its own row in the search results.

A column to display the market price X amount of time ago, input by the user

Allow users to define more than one dashboard, and share them via URL with other people

Option to show dates in a standardized day/hour/minute format that all lines up

Add a filter to only show markets the user hasn't seen before.

Make the search boxes look nicer so they're not just a giant pile of input boxes. Lay them out in columns or hide ones the user isn't using or something.

Add an OR conjunction for search terms, so people can search for something like "question includes 'altman' OR 'OpenAI'"

Add a "concise mode", which removes all extraneous text from the table, like the percent sign, M$ sign, etc. and aligns them all nicely

Add fuzzy searching that can catch typos and synonyms

Let people resize columns, or add intelligent column resizing

Let people see the limit orders of a selected user in each market

Add support for other platforms. Polymarket, Kalshi, etc.

Add tiny arrows in each column header as a visual indicator that they can click there to sort the column

If the user enters a date, it should be treated as a range from the beginning of that day to the end, not just the single millisecond at which that day begins.

Let people see the position of a selected user in each market

Add reminders to check back on a market after some time

Add direct links to user profile and/or group pages, maybe accessible by shift-clicking on them.

Check to see if any of the code has changed upon page load, and if so wipe the cached market data and reload it.

Let people see the profit of a selected user in each market

Fix the graphical issues that cause fields to unfocus and dropdown menus to disappear each time new data is loaded

Add some way for clicking on a group or creator to wipe the rest of the search. Maybe shift-click? Or maybe it should be the default?

Add more complex diff detection so that the client can catch up on what it missed if it loses internet for a few minutes, or at least tell the user it's out of date

Add an option to change the height of each row such that it's proportional to the width of the interval between the previous market's close time and the next market's close time, so distance down the page represents time in the future.

Fix the bug that causes numeric markets to be displayed as though they were regular percentage markets.

Make the choice of which markets to store locally smarter, so it won't accidentally cross the 5MB localStorage limit.

Add hotkeys to make trading and searching even faster

Add more sensible step values to the numeric input fields

Allow people to place long-term limit orders

Make the "last updated time" field include edits to the market description

Somehow convince Manifold to waive the API fee if bets are placed via Predictionary

Make it look not-terrible (this suggestion is for aesthetics only, not functionally-useful layout/display features)

Allow users to see whether a multiple-choice market is select-one or select-multiple

Display who can add answers on a multiple-choice market

Give it a better name than Predictionary. (Suggestions welcome.)

Add proper inputs for dates and drop downs for categories 

Add support for Polymarket front-running. (https://medium.com/@eightyhi/blockchain-based-amms-arent-fit-for-prediction-markets-bbe6ad7a33ca)

Make a row flash when its probability changes

Add a bulk bet button that can bet on all markets in the dashboard

Fix the bug that causes some resolved markets to not be marked as closed

Add a way to view/query detailed historical market data

Add a one-click feedback form on the page itself

. This market is a hub for feature suggestions and bug reports. To make a request, simply add it as an answer.

(Please avoid duplicates. To upvote an existing suggestion, bet on YES. Feel free to submit features that 

I will prioritize suggestions that have a high probability, but I may also implement some low ones if they're easy to do or I personally want them to exist. If you really want something, you can also offer me mana to add it.

Every answer stays open until implemented or it becomes moot. Then it resolves a few weeks or months later, based on whether I think it turned out to be worth the time to implement it. This is subjective, but roughly imagine something like "at least 1 person appreciates and uses the feature for every hour it took to implement". (This heuristic may change.)

Duplicates, off-topic answers, and suggestions that stop making sense due to another change resolve N/A. 